Well labor is a resource just like lumber or coal or oil, so it stands to reason countries will exploit that resource if they have it.
Well that could be said of every foreign company doing business in other countries, but I don't see why that ownership is relevant, if it was that then why not tax US companies that do business in foreign countries?
The reality is that we import more than we produce, that's what any econimics book or article on this subject will tell you.
If there were no US companies in China or India or Canada or Mexico, do you think we'd suddenly reduce our consumption?
So far you've simply blamed US companies operating overseas, but I don't see how ownership is relevant here, we'd still import the same if there we no US companies operating overseas.