Plenty of blame to go ‘round on this.
In the past 20yrs, the U.S. shifted from “go out and build something” to “go out and buy something”. At this point, we’re not doing much of either.
Even under ideal conditions, returning to building things is not an overnight move...and, thanks to unions that help drive away manufacturing jobs, it might prove impossible (outside of right-to-work states, which, at present, are too few to float the boat).
Not only that, but we can't compete with countries that use slave labor, prison labor, and manufacturing that is heavily subsidized by their government. Then you get into the hostile business environment that our politicians have created for manufacturing here in the U.S. with high taxes and out of control regulation that other nations don't have to deal with such as environmental restrictions and you end up with a formula that means NO DAMN JOBS!