My understanding of the crux of the discussion was your promotion of "social consensus to improve social problems." I do not hold "social consensus" to be a worthy target for me to promote my values within the world. Indeed, I find "social consensus" antithetical to the promotion of my values. Chomsky's focus, as far as I know, was on the political authority side, the "big picture" of the equation. I'm not clear he had any such lectures.