He’s got it right when he suggests that fascism was a revolutionary movement. But then he shies away from the consequences of that insight, because many of the people he wants to call “liberal fascists” are boring reformers, certainly not revolutionaries. And he shies away from the revolutionary nature of fascism for another reason, too: because it shows that revolution is not just a leftist political phenomenon. Jonah wants to have us believe that fascism was “of the left.”
While certain French revolutionary ideas played into the creation of the fascist movement, and while Mussolini started life as a socialist, and while various radical anarcho-syndicalists supported Mussolini from the very beginning (and some remained to the end), it is still a real stretch to say that fascism was fundamentally leftist.