I think we’ve already seen that export controls help your competitor in the long term. First europe would turn to Chinese models, then if china was daft enough to stop that (why would they? It would bring the end of American hegemony) then europe will just develop their own.

The difference between America and europe isn’t technical ability. It’s access to funding and ambition. Export controls would fix that. In fact, I think the trump administration is already driving a boom in London.