Something that is commonly left out in these discussions about hatred in disco (which really is a huge problem) is that there are several different kinds of hatred.
There is the angry and open kind, where people feel they have genuinely been wronged, or are frustrated by inaction about a re-occurring problems that negatively impacts them or others.
Then there is the smug kind of hatred, where people harm others because they take pride in it, or where they intentionally don't solve problems and also make sure someone else doesn't solve it either, because that would hurt their pride.