What comes to mind is a conversation I once had with a old school Marxist about Capital, and its "applicability", or its accessibility, to the average jane and joe. She claimed that Capital is readily assessable, I claimed it was a text hardly approaching contemporary understanding without a bit of background, definitions, and maybe several years of study.
Of course that's nothing compared to what flies for "theoretical discourse" these days, from various Marxist circles, primarily. Note this passage:
One should bear in mind here the fundamental lesson of the Hegelian "concrete universality": the universal necessity is not a teleological force which, operative from the outset, pulls the strings and runs the process, guaranteeing its happy outcome; on the contrary, this universal necessity is always retroactive, it emerges out of the radical contingency of the process and signal the moment of the contingency's self-Aufhebung.