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Americans have been taken advantage of, but it's not been other countries taking advantage of Americans, it's rich Americans taking advantage of poor Americans.
Except that the US hasn't been. Global trade has made the nation wealthier than ever. People who aren't wealthy have been taking it in the can, of course, but that's not because of global trade and these changes aren't going to fix that.
All that's going to happen is that if you aren't already very wealthy, you're going to get poorer.