Offering „You are welcome“ relocation package to Anthropic might be a good idea.
Anthropic has gone out of their way to make a point about how much they love and admire the US state and its defense sector. Only drawing the line at a very far point and even when they drew the line it was with a big thing about how they believe in the American defense sector blah blah blah.
In any case, there's no way Anthropic's investors in Silicon Valley would countenance such a move.
Also, I'm biased the logical place is Canada, not Europe. Much of the fundamental/foundational research on LLMs, and a large part of the talent, came from universities in Canada anyways.
Given how American govt. has treated Anthropic, I think you might be right. EU truly has a remarkable opportunity to make Anthropic/Claude European.