You should. The workers don't buy from American car dealers, do their laundry in American cleaners, buy their gas at American filling stations, but postage stamps from the US Post Office, eat at American restaurants, shop at American groceries, have their phone service with American phone companies, pay American utility bills, buy American cable or satellite feeds, shop at American convenience stores, buy books at American booksellers, buy internet service from American ISPs, pay American state and federal taxes, or defend America in any way.
See where I'm going, here?
I understand, and I do try to buy American whenever I can, as long as both products are of equal value and around the same price. But when I can get a higher quality item at half the price I will.
But for the majority of things like soap, shampoo, bathroom cleaner, food etc. I do buy American made goods.
So, are you equally opposed to Japan and Korea from opening auto factories in the United States? After all, Americans don't buy their cars from Asian auto dealers, do their laundry in Asian cleaners, buy their gas from Asian filling stations, buy postage at the Asian post office, etc...
I mean, just to be morally consistent, here.