I actually think it is less about race and more about the appeal of Trump to the average, hard working middle class American. I think the group that turned out in droves for him is probably that group that is typically hard working, but is seeing their way of life (and standard of living) degrading. In many cases, that ends up being rural white voters.
I'm guessing he is appealing to people in the energy industry and manufacturing in particular. The energy side I actually think will be a good thing, particularly coal, which the Democrats have been slowly killing for years, and is still a cheap source of energy for this country. Oil, I still think we should just get it wherever we can get it the cheapest. We have a lot here, we can get it when we need it, so buy it where it is cheap now. If the Saudis want to sell it cheaper than we can produce it, great, we'll buy from there and go get ours when prices go up or everybody else runs. I'm sure that is not what people who make their living in oil want to hear though.
Manufacturing though I think is a massively flawed premise. I'm sure people want to return to the age when we manufacture things here and Dad goes to work at the factory all day making good money. Those days are gone. If businesses can manufacture overseas, they will. If not, they'll just automate factories and the people working there will largely be college educated tech workers anyway. We're not going to make T-shirts, plastic widgets or shoes in this country anymore. Even things like iPhones don't really make sense to manufacture here. So Trump's plan is to limit the economic advantages of manufacturing overseas to what end? Either you end up producing massively overpriced goods domestically (since the average American factory worker isn't going to work for the price a Chinese one would) that you can't sell here and can't export because of the price or you invest to completely automate manufacturing and job creation is limited to a sector that doesn't support the large base that turned out to vote for him.