Stalin, in turn, transformed Marxism into a rationale for national socialism… Leon Trotsky was equally quick to condemn the advocacy of socialism in … - A. James Gregor

Fascism, National Socialism, Stalinism and Maoism were all species of a single genus, ‘totalitarianism.’ The resemblances they shared were cognitively more significant than the features that distinguished them. More significantly, perhaps, the features that originally distinguished one totalitarianism from another gradually abated over time. By the end of the century, Marxist-Leninist systems had begun to take on some of the major species-traits of Mussolini’s Fascism. All of this attests to the futility of attempting to identify Fascism, or fascism, with the political right. Fascism was neither essentially right-wing nor intrinsically ‘anticommunist.' Fascism was neither ‘anti-intellectual’ nor, in principle ‘irrationalist.’

While not a single Marxist ‘charismatic leader’ in the twentieth century made revolution in an advanced capitalist country (as Marx prescribed), or undertook the ‘withering away of the state’ (as both Marx and Engels insisted), or insured against the rule of elites (that both Marx and Engels identified as an essential of the ‘dictatorship of the proletariat’), or provide for the obligatory ‘rotation in office’ (again, as both Marx and Engels insured would be a post-revolutionary feature of socialist society), or resolved the problem of human ‘alienation’ (so emphatically lamented by the young Marx)—Western academics have never hesitated to directly associate Marxism-Leninism, Maoism, Castroism, and even the barbarism of the Khmer Rouge, with the philosophy of Karl Marx and Friedrich Engels.

What distinguished Gentile’s Fascist rationale from that which came to characterize the legitimating rationale of Marxist-Leninism was Gentile’s identification of the nation—rather than the ‘proletariat’—as the community of destiny that would shape our time. For Gentile, proletarians represented only component elements of a larger organic community: the nation. In the modern world, only the nation could provide the material, intellectual, political, and moral environment in which the individual might find fulfillment.