The fact millions still hear and support him puts your analogy under question. This, in some sense, appears to explain it:
An analogy is haunting the United States—the analogy of fascism. It is virtually impossible (outside certain parts of the Right-wing itself) to try to understand the resurgent Right without hearing it described as—or compared with—20th-century interwar fascism. Like fascism, the resurgent Right is irrational, close-minded, violent, and racist. So goes the analogy, and there’s truth to it. But fascism did not become powerful simply by appealing to citizens’ darkest instincts. Fascism also, crucially, spoke to the social and psychological needs of citizens to be protected from the ravages of capitalism at a time when other political actors were offering little help.
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There can be no question that violence and racism were essential traits of fascism. But for most Italians, Germans and other European fascists, the appeal was based not on racism—much less ethnic cleansing—but on the fascists’ ability to respond effectively to crises of capitalism when other political actors were not. Fascists insisted that states could and should control capitalism, that the state should and could promote social welfare, and that national communities needed to be cultivated. The fascist solution ultimately was, of course, worse than the problem. In response to the horror of fascism, in part, New Deal Democrats in the United States, and social democratic parties in Europe, also moved to re-negotiate the social contract. They promised citizens that they would control capitalism and provide social welfare policies and undertake other measures to strengthen national solidarity—but without the loss of freedom and democracy that fascism entailed.