> But now we can't build anything and if china embargoes us, we're doomed.
Firstly there is vastly more manufacturing in the US, Canada, and Mexico than you appear to realize. Secondly China is far more prone to being embargoed than the United States. If China cut us off then the price of certain goods would increase significantly and there’d be shortages of some goods and industrial inputs but we could feed ourselves, keep the lights on, heat/cool our homes, keep our industry going, and crucially our military capacity would be untouched. China would lose its largest and demographically healthiest consumer market which would vastly deepen its economic hole, lose a huge supplier of food which China can’t do without, and the US navy could interdict all energy shipments to China which would result in the country deindustrializing in a few months after its reserves ran out. Depending on how the embargo was effected it might drag in Japan or India both whose navies could single-handedly cut off China from oil shipments.
Firstly there is vastly more manufacturing in the US, Canada, and Mexico than you appear to realize. Secondly China is far more prone to being embargoed than the United States. If China cut us off then the price of certain goods would increase significantly and there’d be shortages of some goods and industrial inputs but we could feed ourselves, keep the lights on, heat/cool our homes, keep our industry going, and crucially our military capacity would be untouched. China would lose its largest and demographically healthiest consumer market which would vastly deepen its economic hole, lose a huge supplier of food which China can’t do without, and the US navy could interdict all energy shipments to China which would result in the country deindustrializing in a few months after its reserves ran out. Depending on how the embargo was effected it might drag in Japan or India both whose navies could single-handedly cut off China from oil shipments.