Nazism is a kind of “authoritarian populism.” Populism is a political ideology that posits that politics is a conflict between two kinds of people: a real people whose concerns and beliefs are legitimate, moral, and true; a corrupt, out-of-touch, illegitimate elite who are parasitic on the real people. Populism is always anti-pluralist: there is only one real people, and they are in perfect agreement about everything. (Muller says populism is “a moralized form of antipluralism” 20).
Populism become authoritarian when the narrative that the real people have become so oppressed by the “elite” that they are in danger of extermination. At that point, there are no constraints on the behavior of populists or their leaders. This rejection of what are called “liberal norms” (not in the American sense of “liberal” but the political theory one) such as fairness, change from within, deliberation, transparent and consistent legal processes is the moment that a populist movement becomes authoritarian (and Machiavellian).
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Authoritarian populism always has an intriguing mix of victimhood, heroism, strength, and whining. Somehow whining about how oppressed “we are” and what meany-meany-bo-beanies They are is seen as strength. And that is what much of Hitler’s rhetoric was—so very, very much whining.
And that is something else that authoritarian populism promises: a promise of never being held morally accountable, as long as you are a loyal (even fanatical) member of the in-group (the real people).
In authoritarian populism, the morality comes from group membership, and the values the group claims to have—values which might have literally nothing to do with whatever policies they enact or ways they behave.