For the same reasons that demolishing Gaza, relocating its inhabitants, and letting someone else develop the land is utterly insane.

People aren't random machines that can be moved willy-nilly.

One reason is that none of these factories can be built without European ASML machines, and given how the US is doing its absolute best to disrupt its relationship with Europe, maybe it would be time to stop selling them there and consider selling them to China instead.

This lines up perfectly with Trump’s policy on Palestine and Ukraine. “Let them take the land”, who cares about the people?