The days of China manufacturing cheap junk is long past. These same arguments were made against Japan. Look at a BYD EV and it will have a fit and finish comparable to any US manufacturer. In aviation, they're catching up quickly to the US, and are arguably ahead of Europe and Russia.

We’re a fading manufacturing power and corporate profit-maximization since the 80s has made things very brittle. The most obvious example for HN is semiconductors but there are many other things which we either don’t make in sufficient quantity at all or which have significant dependencies on countries like China. In a war, it doesn’t help, if, say your factory is in Utah when it depends on Chinese rare earth until someone spends 5-10 years getting a new mining & refining supply chain online.