Well... not everybody bases "fair" on "ability to cope with the loss" so higher tax rates for higher incomes does not make perfect sense. Wouldn't it be better

Well... not everybody bases "fair" on "ability to cope with the loss" so higher tax rates for higher incomes does not make perfect sense. Wouldn't it be better to tax everyone at 20% and then let people volunteer to pay 30% if they want to help cover those that can't afford the 20%. This way everybody wins. Right now we generally have a large group of people that gets together and says, "We really need to help those poor people. And that guy over there is going to pay for it." It is super easy to vote for higher taxes for someone else. I'm curious just how many people would just volunteer to pay more than the 20%. How do those people feel now that the only person they can point to is themself.