No, this isn't it. People aren't mad at the people dehumanising them. In fact people celebrate those people en mass. Facebook, Google, etc. would all disappear

No, this isn't it. People aren't mad at the people dehumanising them. In fact people celebrate those people en mass. Facebook, Google, etc. would all disappear if what you said were true. Politicians would be voted out, etc. The truth is, people don't mind being dehumanised if it can make them feel more like their neighbours, or even better, above them. We're all too lazy to care about being dehumanised, like pigs to slaughter. People lash out not because they feel helpless, but because they feel superior. They're not, they're just bored and life has been good so things they invent to get upset about look extremely bad to them.