They could be classified as Totalitarian Rulers. Hitler, Mussolini, and Josef Stalin were leaders of Totalitarian governments that controlled all aspects of daily life. The dictionary definition of Totalitarian is, "Relating to a system of government that is centralized and dictatorial and requires complete subservience to the state." Synonyms for it would be one-party, dictatorial, tyrannical, fascist, oppressive, and illiberal.
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