Mark Cuban is right. We need to remember the spirit of America and ensure we promote that. People that make the country work well and grow it aren't concerned about income taxes. They might be concerned about deductions and taxes they pay on employment, benefits, etc. as a business, but they're not going to start or not start a business based on anything else.
We have the ability to build tremendous businesses here in the US. To me the thing we need to stop doing it protecting every large corporation from competition, which is what a lot of our patents and copyrights do. Limit those protections. We'll always do better by having more businesses rather than few ones.