"Antifa stands for "anti-fascist." In their own minds, at least, the idea of their association with fascism must seem ridiculous. Many Antifa activists have openly declared themselves to be communists or anarchists.
However, one can construct a composite of today's radical Left and test it against our checklist of historical fascism. What one finds is that, on balance, today's radicals have much more in common with fascism than most analysts have recognized.
Violence: Like fascist violence, Antifa's violence is undergirded both by a calculated goal of undermining order and by raw hate.
Racial collectivism: The dominant ideological strain [..] revolves around collectivist racial identity politics in which individuality is submerged beneath broad racial categories. Accidents of birth are central to this understanding of the human condition, while common humanity or individual worth are denied or downplayed. "White privilege" is the monocausal explanation for everything wrong in the world, and race is often the determinant of how a person is judged.
Obedience to leadership: Is individual thought set aside by the radicals in favor of groupthink systematically dispensed and enforced by the movement? There is not yet a single leader figure at the national level (which is true also of the white nationalists), but participants are nevertheless instructed from above on the identities and qualities of a "fascist" or "racist," ever-broadening categories that now include all Trump supporters, capitalists, mainstream but controversial conservatives, police officers, and others. Dissent from the party line is seen as treason and brings swift retribution on social media, a terrifying prospect for the young.
Statism: The radicals are clear opponents of limited government and free markets, preferring instead state control and direction of society, economy, and education (as long as the "right" people are in charge of the state). Antifa has declared capitalists an enemy, and BLM has endorsed an economic program of massive taxation, redistribution, reparations, and government control.
Ideology as religion: Have the radicals turned their ideology into a secular religion, with its own rituals, dogmatic beliefs, and punishment for heretics?
Denigration of reason: In his article in New York Magazine, Sullivan also noted that activists "shut down the [Murray] event because intersectionality rejects the entire idea of free debate, science, or truth independent of white male power." Instead, their ideology explicitly extols emotive themes and a priori assumptions.