No it is not the implication of the liberal left. It is the actions of the reactionary right.  I do not believe in street violence--but in this country, most of the non-gang related violence is committed by tattooed, gun toting thugs waving the stars and bars (American equivalent of a swastika). If you support white nationalism, unlimited corporate power, and authoritarian leaders, you are a fascist.  Don't blame the left for accurately applying the denotation, blame the people who live up to the description.