We in the west, especially us smart folks, cherish our environment, and we think it is shameful to force people to work in inhumane conditions. How fair is it, then, to force our fellow westerners who didn't win the intelligence lottery to compete with labor in countries that don't care one whit about either?
It isn't right. The multinationals will shriek bloody murder about it, because they've made a killing engaging in moral arbitrage, but it's time to tariff the hell out of products produced in ecological and human conditions we would find deplorable in our own countries.