Of course, with the rampant anti-intellectualism burning a path through our institutions, we're currently doing our best to kill that and make sure we fall behind in every respect.
If they are the best and brightest of the world and typically stay back and contribute significantly above the median employee to US industry or even start their own companies, why is it framed in such a negative way?
What does it even mean to be "the best of the world"? People are not numbers, you cannot just rank them by score!
You’d have a Chinese professor and all his students were Chinese, an Indian professor and all hers were Indian etc… The American born professors tended to have mostly American born students, but it was a bit more mixed.
It’s hard to know whether this was based on the professor’s preference or the students’.
The absurdity is Americans assuming people won’t express in-group preference.
In 1979, 14% of PhDs went to non-citizens. In 2024, it's 38%.
(Table 1-6 in https://ncses.nsf.gov/surveys/earned-doctorates/2024#data )