Over Tesla? No way! The US didn't even go nearly as far over the Boeing-Airbus disputes.
Also, the EU countries field, between them and the UK, multiple aircraft carriers, nuclear subs (hunter-killer and ICBM ones), modern militaries (albeit smaller in size than during the cold war) and robust industrial base for basically everything. Surey the US quiting wouldn't be great, but it wpuld be an even worse self inflicted wound than Brexit.
Unless Elon ends up POTUS (after all, in Demolition Man they passed an ammendment to allow Schwarzeneger to be elected, so ehy not?), the US won't do nothing over Tesla whatsoever, now or in the future.
What's NATO got to do with it? Really these are absurd statements. The US is tickled pink that Sweden finally joins NATO and three weeks later they go and drop out of NATO on account of a business dispute?