On TRP, I've seen Marxism mentioned a few times in relation to feminism, among other things. So my question: What are your opinions of Marxism? Does it have any value as a method of sociopolitical analysis?

We'll use this definition of Marxism from Wikipedia to simplify the discussion:

Marxism is a worldview and method of societal analysis that focuses on class relations and societal conflict, that uses a materialist interpretation of historical development, and a dialectical view of social transformation. Marxist methodology uses economic and sociopolitical inquiry and applies that to the analysis and critique of the development of capitalism and the role of class struggle in systemic economic change.