So, at much personal expense, I looked into the matter, and I think that you're incorrect. TRP's are at the very least as christian as the average american, and probably far more so considering the age group that the TRP is constituted of. There is virtually no scientific data to turn to, but I spent an, absolutely agonizing, length of time looking over "atheism", "christianity", and "religion" within the context of this sub-group, and found a very strong inclination toward christianity. Overtly atheist comments/posts were dramatically downvoted with notable frequency (although the fact that they exist does suggest that atheism exists within TRP culture) and I think you're committing a common mistake: you don't like reddit-know-it-all atheists, you don't like TRP, ergo TRP is atheist.
Here's a single example from "RooshV's" forum, but if you're not convinced I challenge you to take up your own analysis of the subject and see if you aren't forced to the same conclusion. Again, compared to contemporary teenage/20-somethings the inclination toward christianity is stronger than it should be.
Also, it should be stated with great emphasis that the state's rights movement in the United States, with all that brings along with it, is a deeply conservative, deeply religious movement. It grew out of the white supremacist movement that was also incredibly conservative and incredibly religious, and about the only group that ever took eugenics seriously. Timothy McVeigh to Dylann Roof, this has been a conservative, religious phenomena, and by no means associated with atheism.