It was a good idea. I'm Mexican, so I'll speak about my country. The quality of life its a lot better than 14 years ago, and as I see the full picture, creating economical blocks (like Europe), is the way to go. Gobalization can not be stop. And about US, I don't think it affects you that much, in fact, you get a lot of profit from it. Anywhere i turn around here in Mexico City, there's a McDonalds and Starbucks, Walmart is the #1 seller, and I read some time ago that 40% of our corn (in Mexico corn is the most demanded product for food) is grown in U.S.
In fact last October there was some economical problems due increase of corn price because ethanol (but thats another issue).
Therefore, as far as I see, it benefits both sides.