The key here is that US regulation distort the market in favor of heavier cars which encourages cars that will be discouraged in other markets.

But Americans can hope for a regime (policy) change every few years though. You could argue both the political ideologies are broadly doing the same shit, but you can hope or lobby for change. On the other hand, imagine your unfavourite politician/ideology remaining in power for the eternity!

?

The difference is about one order, that makes it a difference of kind when mercantilism is the current successful strategy.

Good thing Covid revealed how weak countries have gotten relying to heavily in critical industries.