[bossabreezes]

The US could fit a lot more people in it, but I think it would be detrimental to have a population of over 500M.

Even though some cities in the US are urbanizing due to free market, the government of most cities in the US is very behind on keeping up on infrastructure. This will end up lowering the quality of life for everyone, and cost of living will become even more difficult in the largest cities.

Also, back to the original question: Asian Immigration. From what I can see, crudely based off of my own two eyes, Indian Immigration in the NYC metro region is extremely high. Most of the time on transit, the passengers are 85% Indian. NYC metro area is definitely becoming Indian faster than any other kind of East Asian, I think that flow has slowed down significantly in the past decade and has been taken over by Indian and South Asian immigrants. Same goes for the Philadelphia metro region, there are Indian ethnoburbs forming all over the place.