Explain specifically how a flat tax is better for the rich. Keep in mind, according to the current Democratic mantra, the rich don’t pay their fair share of federal income taxes, implying they don’t pay as high of a percentage, on average, as those making less than them.
As for economists, I trust most them as far as I can throw them. Most of them are too caught up in textbooks to be in touch with reality. The majority predicted transitory inflation. The majority believe that Trump putting a tariff of Chinese goods is really just a tax on consumers that buy these goods but, somehow, magically, raising corporate taxes doesn’t have the same effect on the price of goods.
Most of the ones touting this stuff are in academia. Politics, not logic or facts, drive their opinions. Like our current liberal SCJ’s, they have an agenda and they will twist the facts and the laws to suit that agenda. They aren’t interested in validating anything that doesn’t align with their ideology.