Sure, violence will likely always happen, since people can kill with just their two hands too. The thing with a gun is that its a lot different than most other

Sure, violence will likely always happen, since people can kill with just their two hands too. The thing with a gun is that its a lot different than most other ways of enacting violence, in the sense its a lot easier to be brutally successful with a gun and a lot harder to be stopped. The numbers of dead and wounded from some of these mass shootings are absurd. You'd have to be a decent bomb maker to get similar numbers, and the FBI tries to anticipate people like this by limiting access to precursors for example. We don't see very many bombings in this country anymore, so I guess their efforts work decently well. Likewise with a knife, maybe you'd slash a few people but a lot of people would be able to get away, and if someone comes with a blunt object that puts some distance between them and you, the knife might only hinder you. The gun though. You can get a Glock with a 19 round magazine and fire it as fast as you can press the trigger. You can even practice with this thing at the gun range all day until you are a crackshot. People can't get close to you to stop you. People can't run away from you as easily either. Even if someone else in the room has a gun, they'd have to somehow beat you on the draw while you already have a gun out cocked and loaded. That's why mass shootings usually only end after the shooter is entirely surrounded by swat in body armor, or they shoot themselves.