Trotsky in his "History of The Russian Revolution" had an interesting counter factual speculation on what might have happened if there had been no Bolshevik Party. He thought there might have been anarchist uprisings, doomed to failure. Russia was already sliding towards military rule. My guess is that Russia could have emerged as the first fascist state instead of Italy. Kolchak and some of the White generals were thinking in tis direction.
With all due respect I think you're buying into the "Lenin was an authoritarian monster" view of many liberals.Lenin was an adroit political street fighter, but that's what was needed. Lenin advocated worker's power, no compromise with Kerensky or the bourgeois state, ideas which are often forgotten by his erstwhile followers today.If you study any history of the early Bolshevik Party you'll see he just barely got his ideas across. Much of the time he was politically isolated within his own faction.
The Russian Revolution did go off the rails afterwards. This is because of the failure of the revolution in the West, especially Germany. Read Memoirs of A Revolutionist by Victor Serge for a masterful account of this period.
The revolutionary movements in Germany and elsewhere where fully parts of the same revolution that occured in Russia.. Luxemburg, and her comrades. had disagreements with Lenin but they had far more in common with him then differences.
If there had been no October Revolution, I certainly don't think Marxism wold have been forgotten.We can take "Marxism" to mean not so much the body of doctrine or writings left to the "gnawing criticism of the mice" in some German guy's attic but as the implicit movement of the international working class. Much or all bourgeois social science-economics, sociology, etc was developed in the mid to late 19th century as a reaction to this "Marxism".
To love. To be loved. To never forget your own insignificance. To never get used to the unspeakable violence and the vulgar disparity of life around you. To seek joy in the saddest places. To pursue beauty to its lair. To never simplify what is complicated or complicate what is simple. To respect strength, never power. Above all, to watch. To try and understand. To never look away. And never, never, to forget
Arundhati Roy
Lenina Rosenweg is a glorious beacon of light