> ...always told their citizens that misinformation and disinformation was evil.
While I get your point, intentional misinformation and disinformation is evil.
OTOH for the most part, when my neighbors spread disinformation, they are not doing it intentionally, so my neighbors aren't evil. It's often by glossing over subtleties like this that those in power divide those they would rule; there are some communists who would like to overthrow the government; all communists are socialists; therefore anyone who ever professes a socialist view wants to overthrow the government.
> an authoritarian regime always started with moralizing everything, always started with telling its citizens to hate their neighbors
Authoritarian regimes start with telling citizens to hate their neighbors; moralizing is just one of the more convenient ways to to accomplish this. The anti-Jewish rhetoric in Nazi Germany definitely had a moralizing component (particularly ascribing the vice of greed), but it also spared no opportunity to portray them as inferior while simultaneously playing on envy.
Actually HUAC and Nazi anti-Jewish propaganda point to another important commonality: those to be attacked were "Un-American" or "Un-German." I'm more concerned with the degree to which both the right and left attempt to de-legitimize the other side than I am about ebay choosing which books they stock.