You really think the major international corporations would choose to just leave the American marketplace?
Of course, do you think the world is going to change its manufacturing base just to suit the US? No chance. Europe is as big a market as the US and the economies of China, India and South America are much more important to the rest of the world than the jolly old US.
If this is true, then yeah, maybe my idea won't work. What about, instead of enforcing complete compliance with US labor laws, just the one's relating to worker safety? It would be a start, and there might be room to grow from that to more compliance, especially if other nations join in.
I love Americans, they seem to think that the rest of the world needs to do what they want while most of them don't own a passport:-)
All you can do is lead by example and get your own act in order - trade barriers don't work.
It would benefit the workers who are being exploited right now in China and even in India.
I admire the ideal, but international trade isn't high on moral messages, sadly.
Life, don't talk to me about life - Marvin the Paranoid Android