It's probably already been alluded to, but the fact is that even today, like one-third of Democratic primary voters in WV basically think like Blankenship. If this turned into a crowded affair, he could come away with a win. In a one-on-one, he doesn't have a shot (even in WV, a majority of Democrats are more or less in line with the national party and broader ideological beliefs).
Wouldn't bet on that. Hasn't WV, like KY, more registered Dems than GOPers? A majority of them are DINOs who vote conservative in a GE. I think Blakenship can win a 3 or 4 way primary.