Your argument doesn't really make a lot of sense. Warlords, factions, rebels, or whatever you'd like to call them, they are people, and sometimes they succeed in toppling a form of government and implanting a different one. A drone swarm doesn't control itself. There are no fully autonomous weapons that can continuously implement higher-level strategies to achieve a certain goal. Of course a drone swarm is not part of the proletariat, the same way a rifle is not part of the proletariat. A drone swarm is a tool in the hands of humans that belong to or are in service of a certain social class.