When Robb has sung the last verse he was referring to himself as
Me I'm skewed etc   ircc in conversation with robb.
It was the female group who rewrote that verse which he agreed was apropriate when sung by women. The fact that it was inspired by Rosa Luxemburg does obviously detract IMHO about its validity of it being sung with reference to Rosa Parks as the later verses move to talk abour woman everywhere and includes the reference to the white house.
Cllr