Go back 100 years and no one will tell you that fascism is on the right. All of the variations of socialism are and always have been on the extreme left. That includes fascism, nazis and communists.
What change is when WWII started. The Progressives rapidly divorced themselves of Nazis and fascists and then to save face they started promoting the idea that fascists and nazis are on the extreme right. And they were very successful of pushing that lie.
The problem is Nazi is an acronym for National Socialist German Workers Party. Just because they were "national" socialists means nothing. They're still socialists. They had all of the same ideals that other socialists believe in. They promoted free healthcare, free education, income equality through wealth redistribution, social justice, and everything else that AOC, Bernie Sanders and the rest want to see happen in America.
Mussolini was a socialist before he became a fascist. The reason it was easy for him to switch is because fascism is socialism with a little (very little) lenience on businesses. Mussolini saw how Lenin (self proclaimed Democratic Socialist) and Stalin (self proclaimed International Socialist) nearly starved the Soviet Union to death by throwing farmers of their land and business owners out of their companies and put their "experts" in their place. Fascism is socialism that lets farmers stay on their farms and business owner run their businesses. Both lose property rights and both are micromanaged by the government but that is the only real difference.
Obviously how each nation implements their version of socialism will be a little different because no two dictators are the same. But the core of all of the above is identical. Socialism = fascism = nazism = communism.
If you put two at either end of the political scale with them all nearly being identical then where does freedom lie? You have to put them all on the total government control side and anarchy (i.e. no government at all and no plans to install any kind of government) on the other side.
It's the only political scale that makes any sense. The one promoted by academia is hogwash.