This what liberals say because they can’t define fascism themselves, sure.

And it is a fairly broad accusation, by literal design. Mussolini himself said fascism can be anything convenient for the state in the moment, that’s why when it comes down to a hard definition they’re either descriptions of the actions of fascist states, vague listings of terms like xenophobia and authoritarianism, or pointing to things like Umberto Eco’s description.