Student visas in the US come with the right to work for some time after graduation. If the foreign student isn’t valuable enough to stay after a degree and multiple years of work I think it’s fine to send them home.
But me personally, I advocate many fewer student visas.
What world are you living in? Many Chinese come in on student visas, get jobs at FAANG and then have to move back to their country after losing the H1-B. These are the people we want, doing the jobs that we want them to do, and we’re too nearsighted to figure out how to keep them.
Again, these are the most talented, most affluent minds that China has to offer. Sure, let’s have them work for the CCP rather than keeping them in the west.
You are showcasing your ignorance as lucidly as possible, bravo. Befriend some Chinese students studying in the US and you will quickly learn hardly any are fans of Xi and the CCP.
But me personally, I advocate many fewer student visas.