But those skills are expensive because the same skill level person in the US has a different pay than the person in China. I don't think that's true, or at lea

But those skills are expensive because the same skill level person in the US has a different pay than the person in China. I don't think that's true, or at least, not true for the vast majority of workers. A typical US manufacturing worker is an order of magnitude more productive (a good, if imperfect, proxy for skill) than a Chinese one, and if anything is underpaid for the value they provide. China just has massively more labor available.