These days, supporters of President Trump and others on the right are often smeared as “fascists,” and what is meant by this is that they support the Nazis. For example, the historian Ruth Ben-Ghiat says: “To get people to lose their aversion to violence, savvy authoritarians also dehumanize their enemies. That’s what Trump is doing. Hitler used this ploy from the very start, calling Jews the ‘black parasites of the nation’ in a 1920 speech. By the time Hitler got into power in 1933 and translated dehumanizing rhetoric into repressive policies, Germans had heard these messages for over a decade....