Furthermore, De Felice insisted that there was no connection or valid comparisons to be drawn between Italian Fascism and German National Socialism, which De Felice saw as being a completely different political ideology. Critics on the Left attacked De Felice for being too sympathetic to Italian Fascism. Giuliano Procacci, Paolo Alatri, Nicola Tranfaglia and others even accused De Felice of supporting Fascism. However, Italian communist leader and intellectual activist Giorgio Amendola came to de Felice's defence and rejected many of the criticisms of Tranfaglia and Ferrara in 1975, calling for more civil dialogue on fascism and antifascism. Although he acknowledged many of de Felice's discrepancies, Amendola endorsed some of De Felice's ideas, including the "revolutionary aspect in Fascism" and the theory that Mussolini's Fascist movement attracted many adherents among the populace.