There are so many problems with simply “raising taxes” as if it’s some kind of cure-all. As some folks have pointed out the US has had higher marginal rates. What they won’t point out is that it scarcely did anything to increase tax receipts. If you look at long-term tax receipts in the US as a share of GDP there is no correlation between marginal rates and how much the government collects.

Progressives seem to focus on higher taxes on the wealthy as if by doing so, you can magically alleviate dozens of other problems. It never works for a basic reason, which is that TAX POLICY is either written by corporatist accountants and lawyers who purposely craft specific loopholes their constituents could drive a truck through, OR it’s written by politicians and bureaucrats who are several IQ deviations stupider than the people they’re trying to ensnare. The guy who earns a million dollars is smarter than any of the bureaucrats and elected officials you see on C-SPAN. We’re not sending our best and brightest to DC. We’re sending our most duplicitous and malleable. People who can vote yes for war and then gnash their teeth about whatever else they want.
If you disagree, tell me if you’ve been much impressed watching politicians argue on TV. If you have been impressed, I guess the kabuki theater worked on you, but might I lightly suggest that people with a fortune to lose are not so easily impressed or befuddled.
Tax policy is an onion of problems — and pretending like you can just add another layer of onion to fix it is simplistic, magical thinking.