The semantic discussion of the term "End of History aside" as
@kernals12 had made it quite clear what he means in
post #5
It occurs to me that if the Bolshevik Coup had failed, every one of the world's great powers would've come out of the war as a democracy.
...
this seems IMO still rather unlikely.
With - however the bolshevik coup avoided and its main proponents at this time (Lenin, Trotzky, ... Stalin ?) removed - ther 'provisional goverment' was officially still VERY leftish, not to say socialistic. There were also still quite some other 'govermental bodies' - Duma, several Soviets, the govermenmts itself the Zemstvos - that would have to come to terms, not to forget the 'centrifugal forces' in the Caucasus, centralasian as well as far-eastern provinces. ... IMO very questionable they would have.
There would come some kind of russian civil war with whatever outcome. Given the many, many soldiers and officers running around with not much to do some kind of militarised, at least authoritarian if not totalitarian regime - at first ? - seems very likely to me.
Given the prevailing antisemitism in Russia at least before and during WW 1 ... some elements of the racial madness of Hitlerism might even raise its head already here.
Also, as said already, the 'foundations' and beginnings of italian fascism were only rather partially anti-communistic.
So : Fascism in Italy would still rise.
The removal of the bolsheviks from the troughs pf power would also not remove the reasons for the turn to authoriaism in most of the rest of Europe in the 20s and 30s, like the Great Depression.
Very likely, that we could in such a scenario end up with the dichotomy :
parliamentary democrcy vs. fascism
instead of
parliamentary democracy vs. communism
... at least as long as t IOTL 'cold war' lasted.