Post Modernist Ideologies

In the article "Globalization, The Politics of Identity and Social Hope", Richard Rorty discusses how nowadays, political and social philosophy takes its starting point not from a historical narrative, but rather from philosophy of language including the catch words "identity" and "difference", "self" and "subject", "truth" and "reason". He believes a turn away from narration and utopian dreams toward philosophy seems to be a gesture of despair. However, isn't identity and difference, self and subject, and truth and reason parasitic themes of our postmodern ideologies? If so, then these topics are indeed parallel to a contemporary narrative and history. Why should we be dreaming of a utopia anyway? I don't think in our day we are in search of a utopia, but more a stabilization mechanism which will hold us from falling deeper and deeper into a virtual world.