Modernism vs. Postmodernism

Hello,
I have two questions for the rabbi:
Do we have to accept postmodernism?
Another question, the Rabbi refers to several discussions and conversations about the development of postmodernism from modernism and especially from the communist approach which presents modernism in its most extreme form.
Thus we saw the evil that exists in the modernist concept (for example: evolution for a better world) and the results of this concept (world wars, Holocaust), but we clearly will not accept postmodernism either.
So what view should we hold?
Thank you very much!