My argument would be that I don't think there is much that's genuinely political art that is good art.
As a composer, I believe that music has the power to inspire a renewal of human consciousness, culture, and politics. And yet I refuse to make political art. More often than not political art fails as politics, and all too often it fails as art. To reach its fullest power, to be most moving and most fully useful to us, art must be itself.