That’s because they were competing for the same peoplepeople to join their ranks. You need to read “the road to serfdom" by F A Hayek.

You’re the one who failed history. Fascism grew out of the socialist commonist movement. They were the “progression” of communism as they so state. NAZI was short for national socialist. And the progressive democrats in the USA were the ones lining up with the nazis. Oh and the nazis developed a lot of their policy…