Research in the other direction:

http://www.atheismresource.com/2010/atheist-dont-commit-as-m...

http://moses.creighton.edu/JRS/2005/2005-11.pdf

http://seattle.cbslocal.com/2012/06/22/study-finds-people-wh...

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjourna...

I'm from Europe and even I think this was so badly argued that I doubt your intellectual honesty here.

Afaik about american statistics, the poorer, lower class groups, are more religious -- e.g. "white trash", latinos and black ghetto cultures. So there is no overrepresentation of those, e.g. blacks, in jail...?