Sorry, I have missed a few pages somewhere. I wanted to come back to Georgette's argument that postmodernists do deal with material reality.
Postmodernists deal with material reality by treating it as a social construct that carries a range of symbolic meanings, which is what the architecture example was about. While not entirely without value, it doesn't really get to grips with material reality at all; it just treats it as another language.
So if a woman is working with sewage in a slum, we can say, in postmodern terms - how did that woman show agency in the designs she used in the design of her slum dwelling, how does it echo or revolt against society by using designs associated with another group, what kind of basket weaving did she use in the designs of her sewage containers, how is space symbolised to demarcate her space from her other 15 family members in her one roomed dwelling?
What it refuses to address is Why and how is anyone living with 15 people in one room and spending every day at risk of cholera and other serious diseases by walking around in an unsafe environment, carrying other people's excrement on her head, dripping down into her mouth and nose? And what can we do about that?
Because that we might actually have to describe, quantify and analyse that woman's and everyone else's access to time, energy, land, pollution, food, the bodies of others,water and resources and say that somebody is being exploited here at great risk to their own life and that other people are gaining from that.