Marx’s later economic determinism centers on surplus extraction, not bare economic structure.

Evidence

Here it is the relations of “domination and servitude,” defined far more specifically in terms of the way surplus value is extracted in capitalist production, which “reveals the innermost secret, the hidden foundation of the entire social edifice”; hence, its political forms, and thus the forms of the state itself. — Hall, Stuart, Essential Essays, Volume 1, 492

Categorization

• QUESTION: Worth chasing: does this tighter formulation resolve or evade the charge that Marx reduced everything to ‘the economic’?