It must come up in every single argument, from sophisticated to sophomoric, about the practicability of non-violent pacifism. “Look what Gandhi and Martin Luther King, Jr. were able to achieve!” “Yes, but what about Hitler? What do you do about the Nazis?” The rebuttal implies future Nazi-like entities looming on the horizon, and though this reductio ad Hitlerum generally has the effect of nullifying any continued rational discussion, it’s difficult to imagine a satisfying pacifist answer to the problem of naked, implacable hatred and …