It has everything to do with it. You seem to be assuming the US is some kind of paradise that everyone would live to live in, despite the horrible culture, bro

It has everything to do with it. You seem to be assuming the US is some kind of paradise that everyone would live to live in, despite the horrible culture, broken healthcare system, and mass shootings every other day. You can't just throw money at people and get them to come work for you wherever you are. Only some people will take the opportunity, others will decide other things are more important than money.