I'm going to take a potentially controversial stance:
The people who spread misinformation about COVID-19 (whether it be claims of a hoax, or spreading misinformation about masks, or spreading misinformation about vaccines) should be treated as pariahs.
The reason the virus is burning so quickly through American lives is that half of America simply doesn't care whether any of the things they say are true or not. This isn't a political disagreement.... I'm not proposing that we shun people for good faith disagreements on policy.
I am proposing that we ought, in every way possible, cut off those people who are intentionally lying and gas-lighting others about masks (etc) and who are, in a very concrete and immediate sense, killing our friends, neighbors and loved ones.
Here's what I urge: to those people that are intentionally acting in ways that are dangerously irresponsible (trying to persuade people that drunk driving is safe or that masks are useless or that it's safe to fire guns into the air in a crowded neighborhood, etc)... we stop interacting with them in every way we can. We stop being friends with them, we stop bothering to be civil with them, we cut off family ties, we do what we can to avoid hiring them, to avoid working for them, to avoid renting to them, to avoid doing business with them.
It's time to start treating these people as the dangerous, irresponsible, sociopaths that they are.