Elon invested all his money from the Paypal sale to make Tesla, Space X, and Solar City at the same time. He had to borrow money from friends to make rent. Take away an additional 30% from his Paypal money and either Tesla or Space X would have never been born.

And that's only one entrepreneur's story. That same scenario is repeated thousands of times around the country. Taxes are sand in the gears of an entrepreneurial economy.