All of their hypotheses about causation and order—where these oppressions come from, how they will change, how to change them—are worse than trash. They are either phrased in a way that is pseudo-scientific and untestable, which helps explain why Marxism has held increasing appeal among leftwing cults the more Marxist experiments proved to be real life failures (cults thrive on pseudo-sciences). Or, their affirmations about the future of capitalism and how to change it that were phrased in a falsifiable, testable way have all proven dreadfully wrong. Exactly as their anarchist contemporaries predicted.
Boom!