I remember stories in the 1980s of American companies sourcing cheap and fraudulent bolts, for instance, from overseas.
I just redid my deck railings from conventional wood rails to horizontal cable wiring for a nautical look. I ran short on the hardware I got from Amazon and bought extra from Home Depot even though it was more expensive. The Amazon stuff has already started rusting only two years later. The Home Depot stuff is fine. Not endorsing Home Depot, it could well have been Lowes. Point being, it was just a deck railing, but if were buying this crap to put in our military and industrial and domestic grid systems, we are screwed. I can understand with simple domestic goods, but why would we rely on parts from potential enemies for critical military grade hardware. Its like the Romans asking Attila The Hun for body armor just before a battle.