Flat Tax "Non-Essential New Items" + State Tax = 20%+ Added Tax = Economy Killer?

"Creates a 14% flat rate non-essential new items only sales tax revenue for the government. In other words, food and medicine will not be taxed; nor will used items such as old homes."
https://intothelight.news/knowledge-base/nesara/

"Forty-five states and the District of Columbia collect statewide sales taxes.
Local sales taxes are collected in 38 states. In some cases, they can rival or even exceed state rates.
The five states with the highest average combined state and local sales tax rates are Tennessee (9.53 percent), Louisiana (9.52 percent), Arkansas (9.47 percent), Washington (9.21 percent), and Alabama (9.22 percent)."
https://taxfoundation.org/2020-sales-taxes/

"A retail sales tax generally has an immediate effect upon prices. subsequently, long-term factors come into operation and tend to modify this initial influence."
http://www.taxhistory.org/civilization/Documents/Sales/HST29008/hst29008.htm

"Due to the advantages inherent in using sales taxes, it is not surprising that some believe that the United States should base their entire tax system on sales taxes rather than income taxes. The FairTax, if implemented would replace most U.S. taxes with a national sales tax at a 23-percent tax inclusive (equivalent to a 30-percent tax exclusive) rate."
https://www.thoughtco.com/the-economics-of-sales-taxes-1147582

"With national debt issues looming in the background, social programs that are chronically underfunded, and a progressive tax structure that has thousands of pages of complication, many Americans are looking for an alternative taxation solution. One of those options is the implementation of a national sales tax. It may or may not replace the existing national tax system and would be in addition to any state sales taxes."
https://brandongaille.com/12-national-sales-tax-pros-and-cons/

"Taxation is one of the essential functions of government, and a fact of life for taxpayers that requires compliance and planning. Income tax, property tax and sales tax all reduce how much money consumers have to save or spend"
https://www.sapling.com/7288080/advantages-taxes

"What are the possible impacts of a government imposing a high sales tax on sales of goods and services? Well, high sales tax keeps off investors. Clearly, investors would prefer countries with low sales tax to those with high sales tax. Low sales tax increases their profit’s margin. Besides, high sale tax that is uniform across all goods and services regressive. By this, it tends to deprive the low-income earners more than the high-income earners. This is because sales rate does not vary depending on a person’s wealth."
https://www.worldatlas.com/articles/countries-with-the-highest-sales-tax.html

"Retail sales are an important economic indicator because consumer spending drives much of our economy. Think of all of the people and companies involved in producing, distributing, and selling the goods you use on a daily basis like food, clothes, fuel, and so on"
https://www.thebalance.com/why-retail-sales-are-important-3141223