I don't disagree that we need something federally, but that isn't going to happen any time soon, by design. The best we can do is tax them in the states where they actually spend most of their time.

Wyoming has the most billionaires per Capita, sure. But they aren't spending most of their time there, for most of them, it's just spending portions of winter in Jackson Hole. Wyoming residents need to tax them too, but they won't, because they're some of the most anti-tax populations in the US. They won't suddenly realize that they're never going to be billionaires and will continue to vote against their own interests.

The tax code shouldn't be based on residency claims, if you have a house somewhere, you should have to pay the taxes of that area. It's only fair.

Don't let the idea of them being more mobile prevent them from being taxed at all. That's all this talking point serves. "They'll just move, guess we should do nothing" is a bad line of thinking. Honestly, they already aren't paying their fair share, so who gives a shit if they just leave. I'm all for it. But they won't leave.