Class struggle (n.) does not divide two particular classes; it divides the Whole-in-its-parts from the Remainder that stands for the Whole as such.
Class struggle (n.) is not the ultimate meaning of all social phenomena but the operator of their dislocation — why they never mean what they purport to; there is no neutral concept of it, since we always already take sides.
Class struggle (n.) exists precisely because there are never just two classes: with only two, they would complement each other in harmony.
Class struggle (n.) is not a positive social fact but the very limit of social objectivity, where subjective engagement co-determines reality.
Class struggle (n.) is like the tribe's dreams, all of which have a hidden sexual meaning except the openly sexual ones: every issue can be read through class except direct talk of class.
Class struggle (n.) cannot signify itself, but it can obfuscate itself: Nixon cast as 'lower-class' against Kennedy screened the real issue.