This is actually a thought I've been having but I've been looking at it more broadly. The microcosms of undesirable personalities are finding common ground and voices that resonate with them. When a group of people with... less than noble intentions, let's say, get together they make everyone within that group worse. If three people have the same idea other people will listen to it. And the people that stick around identify with it. These people that are provided no outlet within normal life because people don't listen to them or they are too frightened of speaking their private thoughts to others. So these people that already have anti-social tendencies are finding common ground with others and making themselves visibly worse, to the point that they're ostracizing themselves from society by cultivating a mindset and attitude that most people can't like. This small aid in human communication, drawing a big red arrow on all the people you shouldn't fuck.
Not to be political, but when you look at the trump phenomena objectively it's like an outline of this. His campaign managers went to where he could shape the electorate, and it fucking worked. And the people that can get behind this idiot are completely awful, and most people know it. It's just a visible example to me. It's fun to watch, so we'll see how the internet continues to shape society.