Plus the shit is dirty to extract. On the one a hand I'd rather export our environmental disaster, on the other hand I think we really need to eat our dog food -- but I'm not confident that any amount of dog folding will lead to much change.
That's what Europe has done when it comes to most of its industry, and that is a big reason why now we (I'm from Europe myself) have to buy stuff like weapons from the Americans.
This doesn't seem to happen, at least not at scale.