I know the political context here is delicate, but maybe be fair to
Innula Zenovka. She clearly enjoys teaching, and that's awesome. No need to try to pick apart her accomplishments as an educator. Those of us who love teaching love to brag about our students. I mean, I have my differences with Innula, politically, but you know... credit where credit is due. It's hard work to get successful students who actually do something with what you teach them.
It's a reasonable question.
The way, though, the pit closures worked out here, at least in the Nottinghamshire coalfields, was that the redundant miners got pretty generous redundancy terms, and also no end of grants for retraining and so on (this is the UK, not USA, we're talking about)
Most of the guys in Nottinghamshire who wanted to retrain, and particularly those willing and able to relocate, were able to find work without too much difficulty.
That, however, left the people who were unwilling or unable to relocate (family commitments, for example). Also, the redundancy payments to miners didn't help people who'd been working in local shops and businesses that depended on the mines for their custom.
The problem is, really, now the pits have gone, there's no real reason for a lot of the old mining towns and villages to exist at anything like their previous size -- the whole point of the villages' and towns' existence was an industry that's gone forever, and the jobs, or similar ones, can't be brought back.
It's a complex problem that requires a whole range of different solutions for different areas and for different groups of people in those areas.
But I see absolutely nothing wrong with encouraging redundant miners to retrain, be it as computer coders or as plumbers or gas fitters or electricians or tree surgeons or car mechanics or ballet dancers or whatever they're interested in that they think they can make a decent living from.
It's certainly better for a lot of people than government trying persuade Amazon and similar employers to open fulfillment and logistics centres in the old mining areas, which seems to be the main alternative at the moment.
Coal mining is, quite simply, a sunset industry, and that applies to the US as much as to anywhere else. No one can change that, any more than they can bring back commercial whaling as a major industry in Nantucket.
Retraining, and helping people to relocate, has to be a large part of the solution.