2 objections.
1 - DooMish. If you think that by killing CD or JC you are destroying Hell, you're totally wrong.)
2 - Logical. You want to turn the game into a global RPG, where you train your character from the very beginning, from his infancy, choosing: give him ordinary milk, or only blessed one (+1 to IronMan), what diapers to equip on him: the ones with kittens, or the ones with angels (+1 armor against demons)? And every year of his life means year of your life spent on it (what you want, destruction of Hell is not a fast process at all, you know).