I know all that, it still isn't the same as communism though. They believe in natural order for one (anti-degeneracy), and don't believe in the redistribution of wealth which makes them nothing alike just because they are authoritarian. Fascism is only centrist due to economic policy, which is capitalist but heavily regulated in terms of exports since they wanted to create everything that could be created in Italy there. You are also just using basic definitions and not taking into account the actual policies Mussolini put into place.