Having a chronic, irrational sadness is way less likely to incur in damage to third parties, while chronic, irrational violence puts vulnerable people in danger

Having a chronic, irrational sadness is way less likely to incur in damage to third parties, while chronic, irrational violence puts vulnerable people in danger. Emphasis in vulnerable, irrational violence doesn't mean the person, if bad-natured enough, cannot pick easier targets, specially women and children. Their violence might also manifest in manipulation and abuse "as an outlet". It's less about getting help and more about wanting to get help. The depressive person might want that help because they realize they can hardly function, the violent person might not want that help because they discovered they can use violence as a tool. And that's why it's considered repugnant.