Thanks for static, flat earth analysis. Let me give you an analogy: Why do stores have sales? Sell more product, get more revenue. Tax money making activity, you get less of it.
You say spending stimulates the economy. The rich money does not just sit under mattresses. It is invested or it is spent (or charity--still spending). Resent the tycoon that builds a mansion; yet, that mansion means jobs. The government spending is not a net gain because the money is just taken out of the private economy. Maybe you want gov't to take money from rich and direct to (and stimulate)consumer economy. You just cripple the largest part of consumer market--the rich.