In the past 4 weeks, Facebook has decided to show me a bunch of new groups for me to join. The groups are, to a fault, all right-wing, from Ben Shapiro to The Atlas Society to pro-confederacy groups (but I repeat myself). Reviewing my likes and shares, there’s nothing to suggest I would be interested in this stuff. There’s a reason the far right is ascendant, and I keep thinking Facebook most assuredly is a big part of that.