Ah yes the good old totally irrelevant national defense strawman. . So I take it you're in favor of tariffs?
The fact remains that proping up some industries with tariffs does far more harm than it does good. Kind of like taxes used for wealth transfer in general. The recipients of the government's stolen largesse are better off, but the many whose pockets were picked to provide it are that much the worse for the experience.
Ninety percent of the steel needed to make armor kits for our HUMMVV come from Communist China and Russia. Why do you think it took so long for the DoD to get them out to the field even with the increased funding? Lithium ion cells needed to make rechargeable batteries to power our electronic devices for our soldiers, over 75 percent of the cells come from mainland China and more in the future as battery manufacturers are trying to reduce costs. We had to import rifle ammunition from Taiwan and Israel because our sole ammo DoD factory and domestic sources could not keep up during the peak of the Iraqi war. Contrast that with our capabilities during World War II. I am not saying no trade, but I say there needs to be a balance between the profits made and the need to preserve certain critical capabilities. My national defense argument is a bit of a stretch, but some aspects of it is happening right now.