The "completely crazy guy" theory of history explains nothing, and is useless. Hitler was a crazy guy; Stalin was a crazy guy; Pol Pot was a crazy guy -- but mad only north-northwest. Often from a desperate position, they played brilliantly, cheated brilliantly.
One does not become a psychotic, totalitarian dictator without knowing all the weaknesses of half-decent folk, including the location of their Achilles heel. Our politicians are willing to appease even a madman, for the sake of peace. And even when peace is unavailable, those with insufficient moral starch will continue appeasing, in the hope of prolonging the appearance of peace.Insufficent moral starch--if only you could dispel it with a spritz.