As your quote says, it's not the wealth that has moved per say, but that people have moved upward out of the middle class and brought that wealth with them with more people moving up than moving down.
I saw some comments (in this thread and some others) that seems to be of the opinion that USA has not benefitted by embracing globalization. That opinion is in contrast to what I have seen in data analysis/reports.
So I wanted to say that maybe problem is not that USA hasn't benefitted from globalization but rather that benefit hasn't been distributed appropriately.
I'm not from USA and my knowledge comes by reading about news reports and expert data analysis so I might be missing something.