ok, but that's exactly the point - it's self-referential claim made within its marxisms own theoretical framework. So marxism, like any other system, already runs on it's own binary code exploitation/emancipation, bourgeois/proletariat, oppressor /oppressed or something like that (it also ties in with the very importnat idea of his that to observe is to make a distinction) and that's how, from within the confines of it's own operational closure, it observes it's enviorment (again "enviorment" being the sum total of all the other systems, not some sort of raw, ground zero reality).
so there is no sense is which marxisms, or any other system, can claim to be an objective meta-system that understands all the other systems outside it's own code.
what should also be obvious is that there is no hirearchy of systems, each system just works to maintain it's own integrity blindly running it's own self-referential code. i suppose it's also important to mention the very important detail that the purpose of this binary distinction as the base operation of every and any system, is to reduce the compelixty and messiness and noise of their enviorment, otherwise they wouldn't be any kind of functioning state of things at all.
also, in no sense systems are seperate bubbles floating in vacuum, they are structurally coupled, they irritate each othe and they resonate with each other. the biggest disasters usually come when this structural coupling breaks down.