I drove to Manhattan just last week...via the Bronx...and,judging from what one sees in the Bronx...it sure looks like a foreign country to me.
All the major cities are going the same way.
I guess I’m a little jaded, although I would never consider moving back. I remember visiting my grad student nephew in an Albany slum a few years back and thinking to myself I was in another country completely.
The Bronx is poor as you mentioned later, however, entire portions of the U.S. are now looking like "foreign countries" with complete cities run by their "own", store fronts, signs in foreign languages, where few are even bothering to speak or learn English. Happening everywhere.
That's what happens when you leave your doors and windows open to the world for 30 plus years at a time.
The government loves it. Cuts down on all the nationalism and unity stuff.