A friend of mine works in a American factory. Their Chinese factory makes the same product which goes out to the market with a 70% failure rate. If their US factory would ever rise to a 3% failure rate then they would be standing in front of corporate explaining why they should still have their jobs. The Chinese government makes that 70% waste possible.
Weeding out all the bad items would be a challenge with most of the raw output being bad. I wonder what the respective reliability of the ultimate shipments are.