But didn't Mussolini regard Italian fascism as a non racist/non antisemitic, more realistic offshoot of Marxism? Up until his death he called himself a socialist.Simples: Fascism is the melding of corporations and the state, which is evil capitalism in decay.
Marxism is the Socialist Alternative, the transition between evil capitalism and FULL COMMUNISM, which is a nice happy world in which everyone lives on farms and property is abolished.
Marxism has nothing whatsoever to do with identity politics, beyond eliminating non-conformists, Zionists and white privilege.
What is there not to like?
Things would work out smoothly, if it wasn't for counter-revolutionaries (petit bourgeoise, kulaks and suchlike) refusing to conform and saying mean things about Stalin and Mao.