Isn't communism the devil or some dumb shit like that? We gotta protect our corporate overlords man, we wouldn't want to live in a dictatorship where a very rich few control the world! /s
To some degree taxes need to be tied to cost of living. Someone making $70k in rural Texas vs NYC is going to have a very different cost of living and quality of life.
Flat tax is nice in theory, but it's horribly regressive. 30% would be a nice reduction in taxes for anyone making $230k + or so, while a dramatic increase for anyone under 90k