Well then, neither is running anything other than a time stamped feed of posts from my friends, but they do far more than that already.
> The high number of extremist groups was concerning, the presentation says. Worse was Facebook’s realization that its algorithms were responsible for their growth. The 2016 presentation states that “64% of all extremist group joins are due to our recommendation tools” and that most of the activity came from the platform’s “Groups You Should Join” and “Discover” algorithms: “Our recommendation systems grow the problem.”
https://www.wsj.com/articles/facebook-knows-it-encourages-di...
Plus this is a very narrow interpretation of the problem. The public discourse issues comes from friends, family, friends-of-friends sharing and spreading articles from the news, obviously fake rage-bait memes, and generally just having an audience for their opinions.