It is a matter of trust Re: Move it to Europe
"This is a prime example of a function that could, and should, move to Europe so it can continue in freedom and stability."
The basic problem is that there is no trust in the US left anymore. They did it once, they will do it another time.
It is not just this administration. Trust in US rule of law is gone. And way too many Americans have shown to hate non-Americans. Whatever happens to the current administration and its members, these MAGA isolationists will vote new ones hating non-Americans in at the first opportunity.
Currently, European countries seem to be most trusted, be it Switzerland or the EU.
Maybe some other country is trustworthy enough, eg, Canada, Singapore or Japan. But the US, China, India, or Russia seem sadly to be be out of the question.
The general feeling seems to be to create an international consortium would be best. The EU has a good track record of allowing international citizens into its funding programs. That might help.