" Ordinary people—and ordinary Germans—cannot be expected to tolerate activities which outrage the ordinary sense of ordinary decency unless the victims are, in advance, successfully stigmatized as enemies of the people, of the nation, the race, the religion. Or, if they are not enemies (that comes later), they must be an element within the community somehow extrinsic to the common bond, a decompositive ferment (be it only by the way they part their hair or tie their necktie) in the uniformity which is everywhere the condition of common quiet. The Germans’ innocuous acceptance and practice of social anti-Semitism before Hitlerism had undermined the resistance of their ordinary decency to the stigmatization and persecution to come. In "

― Milton Sanford Mayer , They Thought They Were Free: The Germans 1933-45