In the UK, it's near impossible to apply to live in America. We have friends who have done it via work (executive board level or pastorate) and some through marriage and also extended family who did it long ago. But for us as a stand alone family unit there does not seem to be a viable route. People from other countries have routes open to them through national agreements between govts and one wonders what deals were done to get such agreements in place. The deep state seems to have it's fingers all over immigration at every level as ordinary people do not really have freedom of movement like elites, illegal immigrants and selected nationalities do.