I think it’s currently pretty hard for these people to stay in the US after getting their phds. I think immigration rates still haven’t recovered to pre-pandemi

I think it’s currently pretty hard for these people to stay in the US after getting their phds. I think immigration rates still haven’t recovered to pre-pandemic levels. I think immigration is just not popular with the American voters at the moment. But it seems obviously bad if someone goes from China to the US for a phd in some critical field and wants to stay in the US (either for better opportunities or for the relationships they have developed or because they like living in a free country) but is forced to return to China by the US immigration system. Maybe phd students in stem in the US also bias foreign because there are just more non-Americans than Americans in the world or because American citizenship allows natives access to better opportunities (eg getting paid a lot more money in tech or just having a job where you get some level of support from your superiors).