People in the US have enjoyed a higher standard of living for decades now because of inexpensive Chinese made goods.
It is because we all want to save a buck, and buy the "least expensive" stuff we can. (You will note, evilmouse, I have retired the term "cheep shit". In honor of Powell retiring the term "transitory" when it comes to inflation.)
Go to Walmart or Sears (if there are left) and see how many more expensive American made alternatives still exist. Not many.
"National IQ" (NIQ) does not equate to the ability to produce inexpensive goods that consumers desire. USA, Russia and Australia have the same level of NIQ, but the USA has a much higher manufacturing ability to produce goods. The problem is the expense it takes to make them. How many appliances come out of Australia or Russia? Like, none. Pound for pound, the USA can make appliances much cheaper than Aussie or Ruskies. But the USA cannot beat China on manufacturing appliances, because of labor costs. Labor costs have nothing to do with NIQ.