Robert Byrd changed and made amends. Trump didn't. Obviously you missed the point there.

Good God! You really are going to make me assemble a complete list, aren't you? I'm taking the time to find these, so you better have some damn good excuses as to why your dear leader said and did some of this shit.

1973 - Discrimination charge. Donald and Fred Trump are accused of violating the Fair Housing Act by discriminating against potential minority renters. They insist they are innocent and fight the sweeping charges.
1975 - DOJ settlement. Trump settles with the Department of Justice over housing discrimination charges
1978 - Renewed discrimination charge. The Department of Justice accuses the Trumps of continuing to discriminate in spite of their settlement.
1983 - The New York Times reports that two Trump properties have populations that are 95 percent white. Reports surface of unwritten discrimination policies on Trump properties causing tenants to be disproportionately white.
1989 - After five young men of color — known as The Central Park Five — are arrested for a brutal attack on a jogger, Donald Trump buys full-page newspaper ads stressing law and order and urging return of the the death penalty. He writes that white, black, Hispanic and Asian families have lost a sense of security in their neighborhoods. (The five men, who Trump called “crazed misfits,” were exonerated 13 years later.) Trump continues to insist they were guilty, and to this day he still refuses to apologize for calling for the deaths of five innocent men, and for his role in this blatantly racist miscarriage of justice.
1992 - A judge rules against the Trump Plaza Hotel in New Jersey, concluding the hotel discriminated in removing an African-American dealer from a table at the request of a wealthy player.
1993 - Trump says “They don’t look like Indians to me,” during a Congressional hearing when talking about Native American casino officials. He then goes on to claim that political correctness has given Native American status to some people who don’t “look like Indians.”
You know, I take this kinda shit personally. My Grandmother was a full blood Cherokee. The amount of pigment in my skin, or the fact that I'm not wearing moccasins and turquoise, has nothing to do with who my family is.
1996 - Twenty people from Indiana sue Trump, alleging he did not make good on promises to hire a large number of local minorities for his new casino.
2000 - Trump agrees to apologize and pay a fine for secretly financing sharp ads opposing a Native American gambling proposal. The ads included pictures of syringes and cocaine and asked “Are these the new neighbors we want?”
2011 - At CPAC Trump claims that President Barack Obama’s classmates never saw him at school. Politifact rated this statement “pants on fire.” This was the first of many false statements Trump fabricated to de-legitimize America's first black president. He spent months going on television shows demanding Obama show his birth certificate. He told reporters that President Obama should have never got into Columbia or Harvard. Don't tell me it had nothing to do with race. You know damn well that he would have never tried this shit on a white president.
2013 - Feeling the need to point out John Stewart's Jewishness to his racist followers, Trump tweets that he’s smarter than “Jonathan Leibowitz – I mean Jon Stewart …”
2013 - During the ramp-up to George Zimmerman/Trayvon Martin trial, Trump tweets that “the overwhelming amount of violent crime in our cities is committed by blacks and Hispanics.” This seems to come from a New York City report showing blacks and Hispanics were also the majority of crime victims. An FBI report disputes Trump’s claim nationally.
2015 - In midst of violent reaction to the death of Freddie Gray in Baltimore, Trump tweets that “thugs” are happily and openly destroying the city.
2015 - In the speech announcing his candidacy for president, Trump charges that Mexico is sending rapists and criminals to the U.S.
2015 - African-American youth “have no spirit,” Trump told a Republican luncheon in Baltimore, adding “they’ve just about never done more poorly.”
2015 - Trump's twitter account is loaded with racist shit. It's funny as hell when he tries to delete some of the uglier stuff, after he regrets it later. Terrifying that our president doesn't even understand how the internet works. For example, In a tweet he later attempted to delete, Trump claims that Bush “has to like the Mexican illegals because of his wife.” Columba Bush was born in Mexico and legally immigrated to the United States.
2015 - His Facebook account attracts the truly deplorable, and he openly encourages racist behavior from his Facebook followers. After saying it found use of a racial epithet to describe African-Americans on his Facebook page, the Trump campaign was forced to fire Sam Nunberg. Nunberg later denied that he even wrote those posts.
2015 - After two white men indicated Donald Trump inspired them to beat and urinate on a homeless Hispanic man, Trump initially calls it a “shame” but then goes on to make excuses for them and provide cover and encouragement for this type of behavior when he claims his supporters do these things because they are “passionate.”
2015 - After a black protester chanting “Black Lives Matter” at his Alabama rally was pushed and punched, Trump tweets (and later deletes) false statistics about the percentage of whites killed by blacks. Politifact rated one claim as “pants on fire.”
2015 - In an interview with ABC, Trump says his Muslim ban proposal is no different that President Franklin Roosevelt’s orders regarding Japanese-, German- and Italian-Americans during WWII.
At this point in time, he is pretty much admitting he is a racist, and is openly courting racist voters.
On Facebook, KKK leader David Duke urges his followers to vote for Trump, saying it is “treason to your heritage” to vote for others. Trump later rejects the endorsement, but receives heavy criticism for the amount of time and political pressure he took before doing so.
2016 - Trump tweets photo of him eating a taco salad, tweeting “I love Hispanics” and “Happy #CincoDeMayo.” Honestly, if it weren't for all the other racist crap he has said and done, I may have thought of this as a moronic moment of forgivable and unintentional racism, but when you consider all the awful things he has said about Mexicans, it becomes pretty obvious that he's just trolling here.
2016 - In a San Diego, California speech, Trump criticizes Judge Gonzalo Curiel hours before Curiel’s court announces he has cleared the public release of some controversial Trump University documents. Trump said Curiel “happens to be, we believe, Mexican.” He also states “Mexicans are going to end up loving Donald Trump.”
Speaking with the WSJ and CNN, Trump says Judge Curiel’s Mexican heritage is an absolute conflict in his oversight of the Trump University case and he cannot be fair. On CBS, Trump calls his inference that Curiel is biased because of his race “common sense.”
2016 - In Redding, California, Trump stresses support from African-Americans and points to a black man in the crowd, saying, “Oh look at my African-American over here!”
This is another instance in which Trump could be forgiven for being a racist moron in a relatively harmless way, but when you connect it to everything else on this list, it becomes something much uglier.
2016 - In Richmond, Virginia, Trump says he will expand his campaign theme to include “everyone.” Then, around the 25 minute mark, he argues America is in decline, saying “African-American youth is an example: 59 percent unemployment rate; 59 percent.” Politifact rated the claim “mostly false.”
2016 - Trump tells reporters with him in Scotland that it wouldn’t bother him for a Scottish Muslim to enter the United States. This, after he had pledged in December to ban all Muslims from arriving in the U.S.. Advisers try to walk back the comments and say the ban would focus on countries associated with terrorist groups.
2016 - Trump questions why Gold Star mother and Pakistani-American Ghazala Khan was silent when her husband spoke at the Democratic convention. “Maybe she wasn’t allowed to have anything to say,” Trump suggested. Mrs. Khan later said she did not speak because she was overcome by emotion.
2016 - In an interview with the Washington Post, Trump refuses to answer whether he believes President Obama was born in the United States. The next day, In a 10-word statement at his D.C. hotel, Trump tells a room of supporters and media that “President Barack Obama was born in the United States, period.” He never apologizes for his years-long continued attack on the legitimacy of America's first black president.
2016 - African-American communities are in “the worst shape ever,” Trump says at a rally in Kenansville, North Carolina. Politifact gives that a “pants on fire” rating.
2016 - While recording a town hall with FOX News’ Sean Hannity, Trump is asked about his solution to black-on-black crime and responds that he supports “stop and frisk,” which allows police to question and temporarily detain anyone. Studies have shown minorities are disproportionately detained in “stop and frisk.”
2017 - Trump begins Black History Month with a White House breakfast. He praises Martin Luther King Jr. and African-Americans in general. He also seemed to speak as if 19th-century abolitionist Frederick Douglass were a living person.
2017 - A white nationalist leader facing charges he assaulted an African-American protester in 2016 defends himself in a court filing by claiming he was acting based on the words of then-candidate Trump. Trump never bothers to renounce the actions of the white nationalist, regardless of the heavy press coverage and public outcry.
2017 - Trump asks “Why was there a Civil War?” in an interview on Sirius/XM, questioning why the Civil War couldn’t have been avoided.
2017 - Congressional Black Caucus Chairman Rep. Cedric Richmond, D-La., writes Trump a letter charging that his administration responded to neither their policy ideas nor seven other letters or documents from the group.
2017 - After a white nationalist attending a rally drove a car into a crowd, killing one protester and injuring many more, Trump condemns “this egregious display of hatred, bigotry and violence, on many sides.” He did not mention white supremacists or nationalists specifically.
The next day he read an obviously prepared message from a teleprompter that finally went as far as to condemn Nazis and KKK specifically.
The next day, during an impromptu news conference, Trump again condemns neo-Nazis but also insisted “both sides” deserved blame for violence in Charlottesville and that counter-protesters had acted “very, very violently.” He incorrectly said protesters were “quietly” supporting the Robert E. Lee statue.
2017 - Trump said NFL owners should fire “son of a bitch” players who kneel during the National Anthem to protest police brutality against people of color.
2017 - In the aftermath of two hurricanes, Trump characterizes Puerto Ricans as “wanting everything done for them,” adding that their leaders are “not able to get their workers to help.”
2017 - At an event honoring Navajo World War II veterans, the president mocked Massachusetts Sen. Elizabeth Warren for claiming Native American heritage, saying “they call her Pocahontas.”
2017 - Trump retweeted three anti-Muslim tweets from British far-right leader Jayda Fransen, drawing widespread criticism. The White House said Trump was “elevat[ing] the conversation to talk about a real threat.”
2017 - The New York Times reports in an Oval Office meeting in June, Trump said Haitian immigrants “all have AIDS” and Nigerians would never “go back to their huts.”
2018 - At a White House meeting on immigration, Trump asks why the U.S. was admitting people from Haiti and Africa, referring to them as “shithole countries” and suggesting more immigration from places like Norway.
2018 - Trump tells a room full of government officials, “We have people coming into the country, or trying to come in – we’re stopping a lot of them – but we’re taking people out of the country, you wouldn’t believe how bad these people are. These aren’t people, these are animals.”

This list is by no means complete, but I'm getting tired, and I believe I have made my point. It is worth mentioning that I have only included incidents of racism. I have not listed Trump's many episodes of sexism/misogyny, homophobia, xenophobia, his cruel behavior toward the disabled, or his callous attitude towards people in places like Syria and Palestine. These issues are most definitely related, as they dovetail into the Republican agenda of maintaining supremacy of wealthy white straight Christian men, and making oppressed scapegoats of minorities and women.

History is when someone reads this thread a couple decades from now, and with 20/20 hindsight can look back at you the same way we would look back on those who were foolish enough to support men like Richard Nixon and Jefferson Davis.

You can try all you want to deflect your guilt and turn this on me, but I'm not the one taking up ranks with Nazis. I'm not the one making excuses for a POTUS that was endorsed by the KKK.