Darthfader:
"So it seems to me that removing the financial incentive to offshore labor from corporations would go a lot farther than forming a union for better wages here."
Even though removing the financial motive for outsourcing is imperative; corporations, no matter what the circumstances are, will reduce wages to the greatest extent possible. That is why, in the context of this society (My actual beliefs are very different), both protectionism and unions acting concurrently will be necessary.
Villabolo