I dunno, that reads a little too simple to me. People aren't magical black boxes of mysterious drives and unfathomable causes, they're components of a larger system and reflections of their environment.

Speaking as a reformed 'teen who wanted to watch the world burn', for some it isn't simple omnidirectional malice, but rather a deep and confusing sense that the world is out to get you (spoiler; in some ways it absolutely is) and an instinct to throw a haymaker just so you feel you didn't go down without a fight.

Once this kind of person begins investigating the causes of their discontent - I myself have come to the conclusion that outdated institutions and capitalism are prime suspects - you can do quite a bit more to focus down that energy on the deserving. If you're young and/or dumb enough to not know the difference between the mynoise guy and 'the system' it's almost a forgivable mistake.

That said, from a practical standpoint, yes. Some people just kinda suck real bad. The why isn't always going to get you closer to a cure.