I don't think Saunders is against the politics of change. He certainly isn't arguing for the status quo of arranging our societies around global free market policies. This approach has largely failed as you have pointed out in your comment. He is, however, pointing out the lack of a coherent response for positive change on the part of those who are railing against the status quo. They are saying "no" for the sake of it without a plan to change the system and circumstance. We are witnessing the same phenomenon in the U.S. right now. This has the potential for dangerous outcomes that can severely threaten democracies.