We already have taxes, the vast majority of which are paid by the wealthy. Taxes are not a cap on allowable net worth. That is a different thing altogether. That is economic suicide.
So you know, agree to disagree, I'm not going to argue anything other than that I don't particularly care for the framing of it as dictatorial or mob rule because the same can be done for other taxes. Which I have done and it doesn't appear you wish to dispute anyway.