Microchips for million dollar smart bombs are important but the ability to give every able-bodied person in the country a machine gun or a tank shouldn’t be underestimated. In the end war is about controlling land and infantry are the best at that.
They are. Foxconn and Quanta both have a presence in the US due to incentives. TSMC is building in the US. Intel gets subsidies to stay in they US. Etc...