You can't tax the guy more because he just won't work anymore and doesn't care about any external measure of "success".

You can.

It's called bull tax and it was used in Poland during the restoration period after the war. Made sense back then because the country needed rebuilding and the last thing the bureaucracy wanted to put up with was young, healthy, able-bodied men who chose NOT put their best effort to rebuild the country but still live comfortably in it.

If the Democrats are clever enough what they will do is raise the base tax, call it normal and introduce discounts based on how much you support their agenda.

One way or the other, they will get money out of your pocket.