You should travel a bit my friend. Ever been to Monaco? Switzerland? And few others. Tons of americans there/here, but they are mostly not coming back and have strong political opinions to base such decisions on. Once you are not poor, whatever it means, folks get very different priorities.

There are no trends of rich people thinking about moving to US from here in Switzerland for example, unless they want really to start some startup and already aim very high (but then Asia offers much more for less money, there is no US moat I could see). US as a country these days is mostly despised, thanks to your current government and its behavior.

Of course some US folks see it differently but but thats emotional view of home-is-always-best. Or literally prefer heavily class-based society based on wealth - we don't do that in Europe anymore.