Earlier quoted context omitted.
It's not just Facebook, but also Twitter and Reddit. The Republican guy that shot the pizza place in DC today was driven by a conspiracy theory marketed on Reddit. These social-media sites are literally dangerous.
I dont see this kind of influence from twitter and reddit. The personal feeling in facebook is far far higher than twitter and reddit. I have never used reddit. The active user share is no where close to facebook. Their reactions buttons are very much reflective of people's views.
The Pizza shop conspiracy was heavily marketed on Reddit, and I'll bet the shooter today got all his info from there.
These platforms have a HUGE problem.