Many US residents who are thinking of moving to another country wouldn't be welcome. Lovely people but they've lived in madness too long.
Apart from having travelled and worked in 11 US states and working with US colleagues weekly, I also play an online game with an alliance of mainly US players, aged about 20-75. Many are ex-service. All types, from retirees, to students to ER staff and a pilot, to people who do shift work and manual labour in factories. Every now and then they will talk excitedly about their guns, how much fun it is shooting AR-15s on the weekend, and the type of lightweight ammo that does the most damage after entering the human body and bouncing around. They have no idea how players from every other country listening to their talk is revolted by that. (Some carry handguns with the most lethal ammo in their everyday life and are somewhat over excitable and prone to impulsive anger. Not a great combination.)
Curiously, the big talkers are also dumb players with no strategic sense. They buy upgrades, maxing out their credit cards so they look good, but smart Russian or Korean players defeat them in seconds. There is one good player who is smart as a whippet and incredibly strategic. The other US players don't like him. They're uncomfortable with his intelligence and success.
If the US does fall further in a hole and we accept more US migrants, I want the smart and strategic ones. The best of the best. The kind that wrote the US Constitution and beat the Nazis and Imperial Japan. We may be able to get them here, as they're starting to feel like strangers in their own country.