That's silly. Guns were created for the specific purpose of killing -- any other use is merely ancillary. A better point is that someone intent on committing a crime will do so with a knife or a gun, whichever is available to them. Both can kill, but of course the firearm is better at it.
But that isn't a bad thing. It's good. For the purposes of self-defense, a firearm is a great equalizer and it's also a great deterrent. As human beings we have a natural and inherent right to defend ourselves and our resources/property from those attempting to threaten them, and in my eyes a firearm is a natural extension of that.
But represent my side of things appropriately, lol.