What helps me is considering we are all hardly one step above wild animals. We do what is instinctual and based on our conditioning and upbringing which no one has any choice in. If a dog was raised to attack people, I wouldn't get upset at that dog when they attack people, it's what they have been made to do by outside influence.

I really believe most people aren't so selfish and reactionary as 4channers or whatever though. If everyone gives you this feeling maybe it would be helpful to spend time around different people somewhere else?

I did grow up Buddhist though, it's been drilled into me since early on to have kindness and compassion for all people, and similarly to Buddhism, Marxism teaches that we are products of our conditions, so I tend to hate the conditions rather than the person.