> "Peasants" are not land-owning farmers. Peasants are menial labor on farms.

Even in feudal economies, peasants had individual or collective property interests in land (serfs and slaves might not, but those are different than peasants, and serfdom had been abolished in Russia generations before the Revolution.) Russian peasants at the time of the Revolution generally were individual landholders because of the recent breakup of collective ownership (other places similar reforms were implemented eventually led to most former peasants ending up as wage laborers as large capital interests bought up agrarian land, but that hadn't had time to happen yet in Russia, and the de-collectivization was still popular among peasants, which is probably a big factor in why peasants in Russia were seen as class enemies of the proletariat by the Bolsheviks; they were, if only tenuously and transitionally, essentially situated like members of the petit bourgeoisie.)

> and serfdom had been abolished in Russia generations before the Revolution.) Russian peasants at the time of the Revolution generally were individual landholders because of the recent breakup of collective ownership

While true it was too little and too late, the conditions of russian peasants at that time were still very serf-like. That and WWI defeat sparked the russian revolution, along with certain interest in the West to destabilize Russia.