Our world has been and still is plagued by oppressive social and political systems. Why do these systems persist or why did they persist for as long as they did? Initially developed by Karl Marx, ideology explanations point to distorted beliefs among the oppressed. Favored by social scientists, collective action explanations point to an inability among the oppressed to coordinate resistance. This paper is about how to resolve the debate. Several philosophers look for a conclusive resolution, trying to show that (...) one of the hypotheses is fatally flawed, so the alternative must be embraced. These resolutions fail, I argue. Instead, we should decide which hypothesis best explains persistent oppression on a case-by-case basis through empirical investigation. I call this piecemeal resolution. After introducing and defending the piecemeal approach, I sketch an empirical strategy. (shrink)