Now wait a minute - how would this not hurt the low income people? If you institute a flat tax, the wealth will get more and more concentrated at the top.
Reread your post, I think you will see that you are contradicting yourself. I agree about elimination of many loopholes, but absolutely disagree with the regressive flat tax. No way a person making $10k a year should have to pay $2000 in taxes in order to lower the tax burden on the rich.