I just routinely block any political page (of any kind) that someone shares, and have unfollowed anyone who feels the need to go on political rants more than once or twice a week (including, sadly, some family members and long-time friends).

I mean, by this point I get it that they like (or don't like) Donald Trump or Hillary Clinton. Message received.

While I won't unfriend someone over politics (unless they start insulting me), I will unfollow them. If they want to waste their own time ranting on Facebook, it's their business, but I've stopped letting them waste mine.

Twitter is, of course, much worse. I don't understand how anyone can believe that Twitter's format is suitable for serious political discussion, but many people apparently do. I quit Twitter a long time ago.