The premise of fascism is that any political system/social fabric/culture must stem from the concrete realities of a nation's life. Therefore, if Hitler had attempted to replicate Mussolini's approach to build fascism in Germany, it would paradoxically deem him unfit for being a fascist. People from different ethnic background/different hemisphere who closely adhere to Hitler's National Socialism in Germany back then would, in fact, not be considered fascists. It's important to remember this.