No, that's a simplistic interpretation. Superman started by fighting the wealthy and powerful and getting into fights with the National Guard. Batman started at a time when minorities had even better reason to distrust the cops than they do now, and many city officials in New York were either flat-out racist and classist or openly corrupt. Captain America was a premature anti-fascist who punched Nazis back when a lot of Americans thought the Nazis had the right idea. These are progressive revolutionaries, not fascists.