Undoing the mess that was H1B was probably a good thing (provided an alternative path for professionals to immigrate without forcing them into indentured servit

Undoing the mess that was H1B was probably a good thing (provided an alternative path for professionals to immigrate without forcing them into indentured servitude becomes available) but this just seems stupid. The only good thing about is that it could change the way universities think about tuition? I don’t even understand the argument for why the students are being sent home. It spreads the virus around (people crossing borders is pretty bad for that) and if they were allowed here in the first place why are they being sent home now?