There's always people applying for jobs and there's always people who want to improve their standard of living. That doesn't make it the best alternative. Also

There's always people applying for jobs and there's always people who want to improve their standard of living. That doesn't make it the best alternative. Also, a most people outside of the US have an idealized vision of how it is. They rarely get to hear about the exorbitant costs of education and housing, the nonexistant public transportation and absence of a social safety net, or the limited vacation time. For a lot of younger people those things don't matter either, and guess who are the people most likely to immigrate. It's also true that for a lot of highly specialized niche markets, the coastal cities have a disproportionately high level of compensation that can make up for those things. However, in my experience, a significant number of people with H1Bs have stayed in the US for a couple years, found the living conditions on the Bay to be completely not worth it, then went back home with a pile of cash.