Unquestionable authoritarian force, outside of that it is literally all debatable and just outlines of different types of approaches and tactics to achieve political goals via that level of authoritarianism. If you want to define it as what was written in the 1919 manifesto specifically that would be a specific brand, or plan, of fascism, which was different from the later brands of Italian and Spanish Fascisms, which differed from McCarthyism, which differed from Jim Crowe, which were all different from the fascism of The Roman Legion, The Spartans, The Caesars, or The Crusades. All were fascism.

Don’t be a pedant, it’s annoying and pointless.