With the US worker and consumer being the same person - I'm not so sure, we're mainly talking about manufacturing, where most people don't work - The rest of the consumers would otherwise be subsidizing the overpaid US worker. Is it right that all consumers (people) in America pay a bit extra in charity to a minority of people who somehow aren't being as productive as they could?
What kind of solution do you propose? More freedom of the labor markets, or less, or something else?
Anyway, "I don't want to repeat myself" tends to be a sign that somebody has come to the end of their chain of reasoning. So there's probably nothing further for us to discuss. I hoped you might be someone who could explain a valid reason behind this popular idea. More than "Be like the better ones."
The point is not to restrict the international labor market, but to free it from this artificial pipeline that is only possible because US corporations work together with local elites in countries like China to suppress their local labor markets.