What's stopping you from voting for the things you want and voting for your own taxes to go up (and everyone making around the same as or more than you) to pay for it? Why target a few billionaires with an entirely new type of tax system rather than just increasing the rates and decreasing the legal deductions on the system we have now?
You already admitted that you have more money than you need? Why not divert that, via taxation, to the things you want?
I never vote against increasing my taxes unless it doesn't make sense what it's going to be used for. Nothing I said indicated to the contrary. Nothing I said indicated that I wasn't willing to put up my own money also.
Nothing is stopping them from voting on those things... if they are on the agenda. But with a duopoly consisting of two business-oriented parties you are unlikely to see it on the agenda.
You already admitted that you have more money than you need? Why not divert that, via taxation, to the things you want?