It will never come back here. The so called free trade deals (aka rigid trade) are only good for the other countries where they pay no tariffs but we do to countries like China.
The taxes here are too high, the regulations are too much and it’s no secret that big business is trying to drive down wages.
[ This might be a good thing. We could see some manufacturing come back to the US. Lord knows we have plenty of area in the heartland where sprawling factories could be created. ]
Provided the Next president Neuters the Grubermint Beer-o-cracies like the EPA and FCC, and not the Congress Like Obozo...