There's a big difference between donating money to the poor and creating a vast society-wide social safety net that enables riskier careers (like entrepreneurship and art) for more people. I support the latter, not the former, and I cannot anywhere near afford the cost of the latter by myself.

Think of it as a new social contract with a modern definition of human dignity that does not include having to toil at a horrible job just to survive. I'd sign up to that.