The British born philosopher Roger Scruton is a formidable opponent to Post-Modernism. Having come to a conservative viewpoint while witnessing the student riots of '68 in Paris (which among other things saw the destruction of countless works of irreplaceable paintings and sculpture from the collection at the Ecole de Beaux Arts), Scruton has spent a career writing and critiquing the left's approach to cultural criticism.
I particularly find this description of post-modernism to be illuminating: "The very reasoning which sets out to destroy the ideas of objective truth and absolute value imposes political correctness as absolutely binding, and cultural relativism as objectively true." (from Arguments for Conservatism, pp. 106, 115, 117.)
An interesting recent article about Scruton's new book "Green Philosophy: How to Think Seriously About the Planet" appeared in the Guardian. Here's the link: http://www.guardian.co.uk/books/2011/dec/28/green-philosophy-roger-scruton-review?
