Industry, we could ramp up production in a shorter time than many give credit for.
As one who has worked in a number of manufacturing industries, I can say that most of our needs could be handled by domestic production. The few industries that would need a jump start are high tech based. And even those wouldn’t take that long as long as people were comitted.
With so many CNC machines out there, parts could easily be subcontracted and high standards kept.
We need china a heck of a lot less than they need us, we just need to up our standards, and they can ‘up theirs’.