I would be honored to have Generative Realism counted as a grand scheme in such company as mentioned above, and delighted to have the capacity to browbeat anyone at all. Alas, Generative Realism is just a humble set of ideas offered up for consideration. I reject the premise of postmodernism that metaphysics is inherently oppressive. The Tyranny of Concepts Postmodernists have another potential objection to Generative Realism. They would argue that claims of truth are bound to inhibit dialog.
All truth is relative, they say.
The problem with grand schemes, according to postmodernists, is that once they make a claim to be true, all further discourse is shut off. End of story. Sit down and be quiet because you misunderstand reality. The postmodernists will not accept any absolute truth to which we must subject ourselves. Rather, truth is what we make it.