Hitler did not have Mussolini's revolutionary socialist background... Nevertheless, he shared the socialist hatred and contempt for the 'bourgeoisie' and 'capitalism' and exploited for his purposes the powerful socialist traditions of Germany. The adjectives 'socialist' and 'worker' in the official name of Hitler's party ('The Nationalist-Socialist German Workers' Party') had not merely propagandistic value... On one occasion, in the midst of World War II, Hitler even declared that 'basically National Socialism and Marxism are the same.’
American historian (1923–2018)
Richard Edgar Pipes (July 11, 1923 - May 17, 2018) was a Polish-American academic who specialized in Russian history, particularly with respect to the Soviet Union, who espoused a strong anti-communist point of view throughout his career. In 1976 he headed Team B, a team of analysts organized by the Central Intelligence Agency who analyzed the strategic capacities and goals of the Soviet military and political leadership. Pipes was the father of American historian and expert on American foreign policy and the Middle East, Daniel Pipes.
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[T]he view that anti-Communism equals Fascism remained obligatory in countries subject to Communist censorship until the advent of Mikhail Gorbachev’s glasnost. It was prevalent also in foreign ‘progressive’ circles. Western scholars who had the temerity to link Mussolini or Hitler with Communism in any way or to depict their regimes as genuine mass movements risked verbal or other forms of harassment.