I'm not saying that we should give up on manufacturing. There are good points on both sides of the argument presented in your link. I agree that it is important to protect the manufacturing jobs that we have.I know what you mean . . . but you're accepting the premise that American blue-collar workers should have to compete with Chinese blue-collar workers. Global labor market competition is not "natural." It's the direct result of our trade policy with China.
Telling blue collar workers to go to college to become retrained to be white-collar-knowledge-economy-professionals who supervise off-shored factories in Mexico, India, and China.... just aint gonna cut it as public policy. But that is exactly what's going on right now.
Other people have said similar things, but much better than I can.
See some of the response comments to this article:
http://www.economist.com/blogs/freeexchange/2010/06/trade_0
My point is that protecting manufacturing jobs is not the way forward for the US IMHO. Just like a business which is facing new competition the best way to stay relevant is to innovate. Do something your competition can't.