Heads up, the industrial base didn’t evaporate.
It moved to the south and is alive and well, thank you very much.
The dense infrastructure of automobile and related manufacturers, machine tool makers, and primary metals producers is still in the Rust Belt. This infrastructure has been eroding for decades. If the U.S. re-established protective tariffs, the South, or even a revitalized North, could reconstruct this network. We can have our manufacturing increasingly outsourced, but we cannot sustain the sort of small wars in southwest Asia we are engaged in, much less face an increasing challenge from China or Russia, without the necessary manufacturing capacity. We have imported small arms ammunition from Israel and clothing from southeast Asia for our military. We have not had to import such basics since the Revolutionary War. If the shipping lanes are challenged by a hostile power, we may not be able to sustain even Iraq/Afghanistan type limited wars.