Perhaps it is key to first reconcile the idea of an absolutist ethical system with the demands of the real world. W.T. Stace was a proponent of the same, arguing that only a single universal code of conduct could exist which was deemed morally correct. Kantian deontological ethics similarly stated that the only good action was the action that, when universalized, would have maximum moral effect, as demonstrated by the categorical imperative. Therefore, under Kantian ethical philosophy, we can state that as long as the principle of Universalizability is adhered to, an absolutist ethical system can exist, for it is then the non-adherents who are fundamentally flawed, and not the system itself, a position taken by Kant as well. Moral relativism cannot be well considered within the structure of the question, for to accept a morally relative system would cause, in itself, major issues within the foundations of ethicality. Moral relativism then leads towards existential nihilism, for to accept all ethical systems is akin to accepting none; No fundamental idea of right or wrong can exist, for right and wrong may well differ from individual to individual, and both are therefore abstract concepts with no real meaning or motive. Moral relativism within the scope of the question would render the question pointless, for no ethically relative system can assign ethical responsibility, the definition and nature of which will differ from system to system, person to person, and place to place.