Yes. This is what will happen. The far right will capture large numbers of moderately sized mainstream subs, they'll think they're crafting narratives like traditional media does as they alienate larger and larger groups of users, and then the whole damn thing will collapse into the ever widening cesspit.
I've been trying to get a kbin instance set up for Atlantic Canada, but I've been extremely time constrained the last two weeks. We'll see how next week goes...