Nice to see somebody who likes Eco`s definition, but that’d be circular logic - his Ur-Fascism criteria were a result of optimization based on a selection of axiomatically fascist regimes, Stalin’s explicitly included. (Sorry for this sentence being clumsy)
Also Stalin’s regime became much more fascist in the middle of war and immediately after it. As an attempt to counter the “national liberation” offering of Nazis, with their national legions etc. So all the republics’ anthems are quite pretentious and proud, and Soviet propaganda in the middle of war also turned to nationalism from just revolution and communism and globalism.
About your invitation - well, 3 and 6 are actually not so easy for me. I’d say these were present before Stalin, as in 3 would be basic Bolshevism, and 6 would be basic Marxism. 14 - see my first paragraph, it was (for Orwell) first and foremost inspired by USSR, and while Nazis or Italian fascists also had distinct public language (Klemperer’s Lingua Tertii Imperii comes to mind), they never went as far.