Actually there was a research news article no to long ago that said atheists in America are closer to 15% and growing. I agree with your post. It has been proven time and time again that non-religious secular areas have much lower crime rates. Thanks for the link btw!
Well, that's like saying that in an area that is 85% black, that means that the reason why the crime is high because of people's race. Of course, in a country populated by %85 of people who identify as religious, the crime rate would be high among them simply because they vastly out-number others.
That correlation is easy to draw.
The more telling (and harder to prove) stat is causation. The numbers you present simply cannot tell us that religion is the reason why the rate is higher -- it only tells us that the rate is high among religious people is because it happens to be more of them.
