>Zizek apparently thinks that he can fight obscurantism with more
Just so happened that I met up with Zizek, and had a chance to ask him about the book. He vigorously denied that it's an apology for obscurantism. He characterizes it as his "most Leninist book yet." What he finds valuable in Christianity is its break from other religions - those that emphasize fate, one's rightful position in a great hierarchical chain - and its emphasis on rebirth, which to secularists, means the possibility of revolution. He also advised you to be on the lookout for his essay on Stalin appearing in the forthcoming NLR.