I’ve said this before, but I’ll say it again: It delights me when theists attempt to call atheism a religion. It isn’t because it is – of course it isn’t. It’s because inherent in their attempt is an implied invalidation of atheism. Why, if I prove it’s religious in nature, then it loses credibility.
I fully realize that theists don’t intend to insult religion like that, but there’s no way around it. And I agree with what they’ve done. If something is religious in nature, if it’s underpinned by the odiousness of faith, then it does lose credibility.