> no "I'm a billionaire so I can spend as much as I want on myself"

To me, that would seem extremely difficult for Congress to pass a law restricting individual speech in this particular way that would pass First Amendment muster, and I don’t think we should be at “let’s just set aside the Constitution when it clearly says something we don’t like” because I don’t think that ends well in today’s political climate (or any other, but it’s especially bad now).