Isn't a flat tax rate already "proportionate to size and income"? What's the justification for higher tax rate for the rich? I agree that their wealth depends on public infrastructure, but I'm not sure that their level of dependence is higher than us.
(I'm asking as a proponent of progressive tax rate, just not for this reason. So I'd like to clarify)
(I'm asking as a proponent of progressive tax rate, just not for this reason. So I'd like to clarify)