Has this actually been confirmed, or is this just the precautionary principle in action?

Domestic manufacturing has a lot of advantages from the standpoint of total pollution. I guarantee you that even with lax American environmental rules, the pollution caused by a factory in Georgia is still lower and less hazardous to workers and the surrounding community than if the same factory were in India. Furthermore, our government is at least theoretically capable of adding better protections for workers and communities, while our government is going to have a hard time enforcing pollution rules overseas.

I don't think you are racist or xenophobic. I just think that when people make this argument they don't think about the fact that this stuff is still getting manufactured somewhere if it's not made here, and basically the complaint is that Americans are having to deal with the consequences rather than people in other countries.