[crdoconnor]

>What are we going to do if they decide they're done being the US's manufacturing state?

If China is done being the world's manufacturing state then inflation is going to go crazy and we'll experience something a bit like what we did with the 1973 oil crisis, except with manufactured goods. It would be a good time to set up a repairs shop.

If China is just done being "America's manufacturing state" then we'll see inflation but probably not as extreme - goods could still be shipped to "neutral" states and then shipped on.

In all likelihood if such a breakdown does occur it will form part of a tit-for-tat including shipping blockades, sanctions and proxy wars.