people don't go on FB to get persuaded by reason and evidence. it is about in-group reinforcement, otherization of disliked out-groups, scandal and rumor, and most of all it is about instant gratification and distraction from the tedium of our daily lives.

if you are aware enough to know how awful the FB environment is, and how much damage it does to your psyche, then you will quit. if you aren't aware enough to realize that then you will not be persuaded of such by someone badgering you in your news stream to be more skeptical, insightful, and reflective.