Actually, I agree that rich people are already paying more than their share of income taxes. But the fact remains that raising income taxes on middle class/poor people hurts the economy more than taxing the rich.

There are three major types of taxes that are levied on the people, sales tax, income tax, and property tax. Sales tax disproportionately affects the poor, so getting all tax money from that is a bad idea. Property tax affects the middle class disproportionately, because middle class families typically have most of their wealth tied up in their houses. And of course, income tax affects the rich disproportionately. The federal government gets most of their money from income tax, so it may seem like they're being terribly unfair to the rich, but state taxes typically hit the middle class and poor harder.