The only thing that Apple might find even remotely useful are Intel's fabs. The rest of the business would have to be sold ton someone else or closed down (which would never be approved by the government).
Even then there is zero indication that Apple would ever want to do their own manufacturing.
The government desperately wants US fabs because the military requires tech and it's increasingly dangerous to rely on globalization when the globe is going nuts -- the rest of it doesn't really matter.
Even then there is zero indication that Apple would ever want to do their own manufacturing.