Oh? Look at machining costs in the US vs China. Look at the cost to get something punched or stamped or bent or extruded or skived.

We have a few companies that make a decent effort, it's true, and indeed the US sheet metal industry is one of the few industries that could be entirely self-sustaining if the ports closed tomorrow. But most of the metalworking in the US is just heavily subsidized six ways to Sunday and still uncompetitive.