Anecdotally, it seems to me that an actual drop in international student numbers would likely have hurt colleges in Republican-controlled states worse than Democrat-controlled ones. American students armed with student loans would still flock to top universities to make up for the international student shortfall, and I can't think of a top 10 [1] university off the top of my head that's in a state with a Republican governor.
[1] https://www.usnews.com/best-colleges/rankings/national-unive...