True but why abandon now at the cost of local communities, when we could slowly introduce the educational side alongside it for a smoother transition?
Manufacturing/natural resource extraction/Steel have all been automated and therefore those jobs simply don't exist like they used to.
If we open a coal mine it will employ just a small handful of people. This didn't happen overnight. This has happened over decades. Many of those downtrodden communities will never be the same and haven't been the same for a long time.
I look at Indianapolis, Columbus, and Pittsburgh of examples of cities that reinvented themselves and adjusted to change. Many places did not and are suffering today because it it. An auto plant that used to employ 10000 now probably employs 1000. Only a guess but automation has eliminated most of these jobs. Not some trade problem.