“Because we tend--often correctly--to associate unfreedom with the presence of oppressive circumstances that we can and should work to change, it makes sense that we might instinctively treat the knot of freedom and unfreedom as a source of perfidy and pain. To expose how domination disguises itself as liberation, we become compelled to pull the strands of the knot apart, aiming to extricate the emancipatory from the oppressive.”