Even taking something as pedestrian as Samurai Champloo, you see a lot of stuff in it that is very anti religion- if not anti-God. Well, we have an anarchist, a fallen disciple, and someone who was personally wounded by religious organisations. I'm not even going to get into something like Neon Genesis Evangelion- which is literally "The First Book of the New Gospel". even when they introduce gods, they are tools of people or are in fact, a nuetral territory. Yeeeeaah, though that had a tremendous amount of Kabbalistic undertones in it as well. Fascinating, siimply fascinating. Oh lol, and Bleach with an secular "heaven" (oh, it's too rich!). I wonder though, what about Yu Yu Hakusho?