That may be, but Marx having been dead for almost 150 years means that he didn't have hand in the nonsense that has transpired in US, French and German academia for the past fifty years. Fx. The "queer" insanity arose principally with Michel Foucault and Judith Butler, much of whose "scholarly works" being halfway gibberish used to try to justify pederasty and assorted sexual transgressions.

That authors claim to base their "work" on a given previous author doesn't make it so. A significant part of recent humanities output is most dressed-up word-play that reaches for major names of the past as a crutch to support their quackery on.