Are income taxes bad?
Bill Gates and I agree that equality of opportunity is an ideal. Equality of consumption is also interesting conceptually and the idea put forward by Bill Gates is that it doesn't matter how much money he has in a bank account but how much consumption he is doing with that money.
Income taxes in my opinion are regressive. It punishes people trying to move up. I also think capital gains taxes can be regressive if applied to people who have either very little income or who don't consume a lot. This is worth discussion, but how would you choose to reform taxes if you had to pass a bill through congress and get it signed by President Trump?