And it's not just isolated factories. There is a whole ecosystem of interrelated manufacturing & assembly companies that you would have to transplant to the US.
And I keep hearing that there are hundreds of thousands of people working on iPhone assembly. I can't even imagine how long it would take to replicate such a workforce in the US. Wages aside, this seems to be rather exacting, meticulous work with limited paths of advancement. Where are these laborers going to come from?
As Steve Jobs is reported to have told Barack Obama in 2010: "These jobs are not coming back".