I agree with you in principle... anything that potentially averts a WWIII, I’m willing to try. In practice though I see almost no integration between US and Chinese students (at the undergrad level anyways) on campuses. At most institutions there is a huge community of Chinese students, enough that there does not seem to be a need to go beyond it in order to have a social life. A lot of the students I interact with, even after 3-4 years living in the US, still speak almost no English, for example. I confess to being at a loss, at times, as to what the point of hosting so many undergrads from China really is. (Other than making a lot of money for the university.)
After university, many foreign students stay in the US.
Majority US-born teams are vanishingly rare at all of the tech companies I’ve encountered, and that includes some of the biggest companies to early phase startups.
I can’t imagine Silicon Valley continuing to function without a constant influx of foreign talent.