Oh, that's what I meant. The analytical premises are so universally assumed that no one has to bother identifying himself as a Marxist, because everybody is.
Go tell a literature professor (because of course that's who I'm thinking about) that you find a poem beautiful, and tell me how quickly you get a lecture on how aesthetic standards are historically contingent and produced* to preserve and advance the interests of the dominant class.
Go ahead. I can wait. I've got a minute or two.
*and re-produced, if Bourdieu's in the mix