That is a very interesting take on postmodernism, and the ultimate 'irony'--postmodernists most favorite thing--given that they see postmodernism as the apotheosis of 'emancipation'. I see it the other way around: making the basis of human relations each individual's capacity to decide for oneself what a person will or will not accept as truth/knowledge, based on nothing but purely personal propensities, is individualism taken to the point of madness.

To me, it all starts with the observation that we humans are social beings. We have always lived together in groups. The fate of every individual is ultimately bound to the group, and every individual contributes to the condition of the group. Material existence (which includes for all people the pertinent societal processes of the economy and the political process) determines the condition of the group and its individual members. That gives rise to an ethical obligation to seek the best possible understanding of material existence--which, I have found, includes the ethic of 'real justice': mutual respect in effecting choices.