The PVP toggle will ruin the game. Here's my idea for an alternative that will 100% please everybody

I do the complete opposite. I relish in the fact that my victims are not having fun and it amplifies my own enjoyment. This is known as the SadoMultiplier and Schadenfreude Utilitarianism, a philosophical branch of utilitarianism. It is simply put, a core part of the human experience.