I think you might be counting angels dancing on a pin.
That certainly would be interesting, but I am pretty sure when the ships stop showing up, everything is going to be upset.
but, but, but,....Hillary told us the world economy would be so much better if we didn’t build everything here and instead everybody relied upon everybody else,.....it takes a village ...ya know..../s
I believe you misunderstood my point: In general, the most easily replaceable parts of a multi-component consumer item are NOT going to be the “functional or necessary” parts.
I would not be surprised to find that 80% or more of US manufacturing production depends in some way shape or form on one or more imported components or materials, with a large part of that from China.
(The way this is going, the “from China” part may not matter much in a few weeks. See: “Korea”. Etc. Possibly some of the warm weather countries like Indonesia can fill in a little, but, either “from here” or “from there”, as we agree, I think, that takes time, and it takes even more time to build really big capacity.)