You can only tax people so much before it's too much.

effective tax rates

0% ... not realistic outside very unique circumstances. 25% ... feels fair to me. 33% ... still fair but yeah 1 out of every 3 days worked you start to feel that. 50% ... the border of fair and unfair. if i keep less than half of what i make, that feeling of fairness wears thin.

Now, when you are near that border of fair and unfair and then you see John Q Artist getting his whole list comped using tax money that pushes the somewhat fair into unfair territory real fast.

Now, we already have situations similar to this in most countries either from subsidies, gov't spending you don't agree with, corruption, waste, etc.

All of that should be reduced but when you see your neighbor living free while you slave away you feel that differently.