Pretty much common sense would have it that the more free trade, the lower the wages for the average worker here in North America and in much of western Europe. The driving force here is wages, which is the greatest single cost in manufacturing. If we think we can compete with countries paying under a dollar an hour, especially with many of those countries that do have good educational systems, then we're simply deluding ourselves.
The move into NAFTA and other free-trade agreements was a bonanza for business since they could produce widgets at lower costs, which also made this whole process more appealing to consumers here in the west. Take a look at the success of Walmart as an example, but how many "Made In America" products do you actually find there? In order to compete with companies like Walmart, other companies had to do the same or their products would be more expensive.
So, business, most of the politicians, and much of the American public, benefited in the short run because we had an economic and educational edge, but in the long run we're reaping the penalty with the prognosis actually worsening.