The ideological premise, however, "can" not be defective; it is sacrosanct. ... Whatever does not seem right, whatever does not fit, must be explained by something wrong outside of the ideology; for its perfection is beyond all doubt. In (t)his way the ideology immunizes itself by offering more and more hair-splitting accusations. Betrayal and the dark powers of inner and outer enemies lie in wait everywhere. Theories about conspiracies develop and conveniently hide the absurdity of the premise, necessitating and justifying bloody purges.