@Green -
You ask some good question in here. They are questions that need to be raised, and re-raised. I wish I had more time to give a detailed post, but I only have time to address one thing that hasn't been brought up.
ONE reason there isn't a push to bring manufacturing jobs back to the US (of the textile, Nike, Apple variety) is that Americans are, in large part, unwilling to do this kind of work. Then, of course, there is the increased wages, but I won't get into that.
The literature that really dives into the willingness to work comes out of Italy. Check out the operismo stuff. We fought for and sorta won our liberation from the doldrums of factory work... for better or worse.
If you look at the history of capitalism in the longview, you see that one reason the frontline of production shifts (from England to the US to China) is that the labor force is, in some sense, exhausted. Capitalism promises increasing returns. There's always the dream of an automated, work-free existence. Infinite toiling is not acceptable.