[yummyfajitas]

Try to pay attention. I'm not arguing against an increasing marginal tax system.

I'm arguing that tax revenue should not grow with income level, they should grow with population [1]. Crime is a part of society, but increasing income levels do not increase crime or increase the cost of road repairs.

Take your favorite progressive tax system. Multiply all tax rates by 1/2. Your new tax system is just as progressive as the old one.

[1] That's my leading order argument. As a second order correction, poor people tend to cost more money than rich people.

[Bricejm]

So what you're saying is as the average income increases, we should decrease the tax rate to maintain a level amount of tax revenue? Then as population grows their taxes should offset their cost? Maybe in a perfect world, but you can't compare our population to a fixed cost.