As long as the US has wealthy safe haven states they are going to be a more attractive destination for people with high demand, high income jobs. As long as those safe havens and state rights exist I don’t think US citizens are going to qualify for entry as refugees for some time. In the unlikely event the law and society breaks down completely people will need to get in line with all the millions fleeing war and genocide. Those that get in through skilled immigration will need to carefully weigh up the significant financial and career consequences.