>economy and society of the USA is failing its own citizens

Yes, and I have completely lost faith in the US's ability, on a federal level, to staunch that failure, as long as the Republican party continues to exist.

>write off everyone who's already here

I agree that I'm being pessimistic, but I feel that's what the government is aggressively trying to do (by, for example, putting a person hostile to education in charge of the agency that runs education at a federal level).