“Part of it is educating US consumers to demand made-in-the-USA products”.
Walmart is going to have to go through years of bare shelves before the US industry could fill demand.
Another part has to happen in the schools. Over half the population doesn't belong in college. In high school, they could be learning hands-on and practical things that prepare them to have jobs and skills when they graduate.
One year I looked for made in America toys for Christmas. I found a few things, but they were expensive and not what my grandkids wanted.