Very interesting, though sometimes the history...and the Americanism of that history, can be as beside the point as abstraction or identity categories. In my experience as a white, educated woman aging in place, power and privilege are much more narrowly defined.

If a person subscribes to hierarchies of any kind, they seem to form unconscious assumptions about all the Others who don't quite qualify to have power...and therefore Voice or Agency.  I have no doubt these pecking orders serve capitalsim.  It seems obvious that capitalist values, and sometimes religious ones, keep the hierarchies in place. But the results of categories or race, religion, gender, class, skin colour, educational achievement etc. etc. are that organizing across categories becomes very difficult.
And what about climate change?  It seems to me the Great Mother cares about as much about our endless divisions as radicals should.  Who is speaking for her today? Because she's likely not a Marxist; she is Material.