All evidence shows that aggresively taxing the rich does not hinder growth and actually expands the middle class. Our nation's biggest expansion of the Middle class happened when the tax rate was a whopping 94% for the top earners. Look it up. FDR built the middle class, damn near single handely.
Scientists and engineers innovate. Billionaires just own the means. It's like I said. Pull the boot out of your mouth and give the credit to those that truly deserve it. Elon Musk does NOT build anything. He just owns stuff.