But then again, so is most of planet. Japan has no natural energy sources so is completely reliant on imports. We have little petrol refining or oil, but we do have some of each. China cannot feed itself without food imports, but we can. Car production is off 25% roughly because of a lack of microchips, and more recently wiring looms from Ukraine. World society is so numerous and hooked into buying stuff, that it can only survive with complex trade interdependence. So everyone is close to a national disaster. Just ask them in Sri Lanka.We are so close to a national disaster