H1Bs are primarily used for foreign students graduating from US universities? That’s news to me!
That's the way it works.
Foreign students make up a huge fraction of our countries STEM enrollment in many Universities because American public schools do a poor job of preparing high school grads for STEM studies and because Americans just don't want work hard enough to make through, much less excel, the STEM career programs
Eliminate H1B visas and the brain drain from our universities would be very problematic for the country.
I personally watched our POS immigration system deport a brilliant PhD Aeronautical engineer with a specialty in missiles for a paperwork error at the same time the Social Services jerks were recruiting illiterate illegal aliens to have government funded delivery of their anchor babies in American hospitals.
He went to China instead where he was welcomed with open arms , which was not a good thing for the United States