I think you might actually be surprised at the level of non-sophistication of most of these factories. Especially for the "made in China" items, but even in the US. My friend works at Masterbrand, a HUGE houseware manufacturer and it is essentially a massive workshop of people using the most basic tools within reason for the job. This is specifically by design because they found that the more advanced tools required more advanced workers and upkeep that ultimately made them more vulnerable to labor and tooling disruptions. Now 99% of the jobs are setup where anyone can step in with very minimal training.