well pretty much any healthy human would kill in self defense whether they want to believe it or not, its simply instinct, either youre a killer or youre dead. if killing wasnt a natural response to some things we never wouldve made it out of the ocean let alone have the society today that allows us to thrive and survive without having to end each other. modern conveniences are the only thing really holding us back, we can play at being benevolent because we no longer have to get dirty just to survive. most of us eat meat without a second thought, even knowing how awfully they animals are treated, because its simple instinct; eating meat= surviving. the moment someone's death becomes necessary for your survival, trust me, youll find your not so benevolent after all.