The problem is that those places often reject attempts to do just that. Such actions require those to actively buy-in to other options.
It is all fine to say what should/could be done in theory, but when the time comes to enable people willing to implement such proposals, the dying towns reject them.
Truth.
People need to not forget that Hillary Clinton had a plan for coal minors and the Appalachian communities that relied on that industry. A very comprehensive plan to subsidize those communities, and bring new industries to them. And at a town hall she gave a very eloquent answer about just this.
And Republicans spliced it into a damaging soundbite that they used to effectively run against her in those very states that would have been helped by what she was proposing.
The issue with Democrats winning those rural Americans is not the lack of a plan, because Republicans sure as fuck don't have one. And it isn't a lack of communicating that plan to that constituency, because we do. Democrats are consistently the only political party that does address bringing jobs and industry to rural America (and we need to do a better job of owning this).
The problem is two-fold: you have a group of people who
desperately want to believe that their dying industries are still the beating heart of "AMERICAH!" and that all that needs to happen is the sidelining of fucking liberals with their goddamn regulations, and a political party that is fully and actively invested in making sure that they KEEP believing that because belief in that fiction grants them political power.
Democrats should never stop trying to talk to those voters. But I do think we need to understand that we're never going to reach them as long as Republicans are invested in keeping them deaf to our message. And again, it must be stated, Democrats have got to get more local, because it doesn't help that Republicans can fortify their message via every level of politics. Ds are shouting good policies, but we're doing it from Washington.