Those old enough would remember fake news used to go through email chains. Even if we ban Facebook, people would do the same through email, should we ban or censor that too? Don't blame the messenger. People enjoy sharing fake stories that sound too good to be true because it makes them feel good, this is probably how most religions got to exist and propagate, way before facebook. This problem is as old as humanity and blaming it on facebook, social media or emails is a bit short sighted. We'll get through this :)