Yeah, it does seem like there will be fewere foreign students accepting their spots at U.S. colleges because of restrictions on immigration. (Colleges Fear Decline in International Student Enrollment) I’d imagine that the drop-off at BS is going to be even steeper since the kids are so much younger. What parents want to send their 14 year old to a foreign country if they’re not sure that they’d be able to enter with a visa or might get deported.
One administrator said that “I anticipate many [college students] will look for alternatives in the U.K., Canada, parts of Asia", which will probably be the same for BS students as well.