Here's another example: I regularly read quality publications in my field from researchers at the University of North Texas. In 2024, UNT ranked 170th in the country by R&D expenditure. Until I start seeing excellent work from other countries' 170th-ranked universities, I'm not worried about them poaching a few researchers from us now.
We don't appreciate how good the research ecosystem is in the U.S. The arsonists in power are trying to set fire to the house, and everyone will be poorer for it in the future, but we can still mitigate the damage.