Well, cost of production up here has all sorts of additional costs you don't have.. lets start with the $1(minimum) gallon high fuel price.. Also, "anti dumping" laws don't care what the cost of production is in YOUR country.. You produce pork and chicken at far lower prices than Mexico did and put a lot of small farmers there out of business.., just one of many things that crashed their economy and sent people fleeing (you guys get to deal with that now).
I have an issue with "free trade" when none of it is free.. I can get parts (cost of parts plus shipping) from china for less than it costs me to put it in the next door neighbors mailbox!
I'm not a big fan of it the way it stands... there's tons of problems with it, but cheap labor in other countries is only a small part of the labor problem, I think automation has had a FAR greater effect, and it will get worse.. What happens when all the major retailers, McDonalds, Home Depot, Walmart all go to automated checkouts? MILLIONS of people out of work.. granted it's not great paying work, but what else is there for these people to do.. Where else is a high school kid going to get some work experience?