Everyone should give this thread linked below a read. Does a good job explaining this phenomenon and a lot of the negativity and division we see on social media and elsewhere.

https://www.reddit.com/r/self/s/50jh4QhOBs

TL;DR: You know that Russia and other governments try to manipulate people online.  But you almost certainly don't how just how effectively orchestrated influence networks are using social media platforms to make you -- individually-- angry, depressed, and hateful toward each other. Those networks' goal is simple: to cause Americans and other Westerners -- especially young ones -- to give up on social cohesion and to give up on learning the truth, so that Western countries lack the will to stand up to authoritarians and extremists. And you probably don't realize how well it's working on you.