Walk into any book store with an idea of what you want. Do you want one of those poorly written Grisham's? Fiction! Do you want our new president's stances? Current Affairs! What about Bernstein Bears? Children! How about the bible? Religion! The Koran? Religion! Torah? Religion!
The book stores have the order of things correct. Those books are not located in the nonfiction section and are rightfully all lumped together in a broad section of 'Religion'.
Now walk into Barnes and Nobles and look for "The End of Faith" by Sam Harris. Current Affairs!
Richard Dawkins? Current Affairs!
This is exactly where religion belongs; stuffed in a corner somewhere all huddled together in the cold waiting for the inevitable day that those books no longer sell and are removed and sent to recycling so some cheesy romance novel can be printed on it.