Sweeney is correct about the definition of fascism. 
Under this definition both the Liberarls and Conservative s would be considered fascist.
Unfortunately as language has a tendency to transform overtime the term fascist seems to now include the reference to the unholy alliance of the state and corporate power combined with WWII style militarism.
Because of this transformation, most people dismiss Sweeney's definition as crazy because the simply don't want to believe that 'public-private patnerships' or political centerism is what Mussolini was referring to.