Don’t know where to start with this one. Creating more political parties just splits the vote. In a “first pass the post” election set up, this would be a disaster. Allowing someone to become extremely rich is not necessarily a problem. The problem should really be looked at more from the gap between them and the normies. Shrink that gap and that lessons the problem. The biggest problem with extreme wealth in an individual or corporation is the outsized influence they have on politics and government. Your SC’s citizen united decision is the real problem that generates a lot of the hate for the rich. Rich people don’t want to be taxed more (in general) so if you try to force it on them they will look for solutions like relocating their tax home. You would need to have tools to punish attempts to do this, like loss of citizenship and asset seizures. These are not popular steps and could sink any initiative before it begins. Those are just some of the problems I see. There are many, many more.