Exactly correct. But I think the left also understands this. What they want is an artificially high wage structure that pays people who don't have the brain power to do anything other than dig ditches or mop floors a "middle class" wage. The fact that you can't build a strong economy on such shaky economics is what eludes them.
You can't have a strong economy without a strong middle class. and expecting everyone who doesn't have a college degree to work for what amounts to be Illegal wages is not going to build a strong middle class. Oh I would like to see some of you guys do the manual labor.
Not to mention if you have a high tech product that is better than the junk from overseas you can compete if the people are given the chance.
But what is and has been happened is upping the bottom line, where jobs were sent overseas at the same time corp's were being helped by our republican friends to do it by getting special tax provisions.
When outsourcing is punished instead of promoted then manufacturing will come back somewhat, but new high tech jobs need to be developed along with it, so there is an upward mobility in place.