We ran into an interesting subset of the "is race or religion an issue" question. I spent many years volunteering on native reservations in a very rural western state. We had given some serious thought to retiring to the area, and got to know a handful of local folks. Mostly white, successful business owners, and very committed to the community by virtue of birth, and/or massive investment in it. The spefic area, BTW would not be in a desperately poor reservation, but in another part of the state that's a highly desirable vacation and retirement destination. The issue we ran into was not religion. We are not active Christians, and were never asked about it. In fact, statistics indicate that the town we focused on has a much lower percentage of active church goers when compared to our home turf of the northeast.
The issue was the obsessive, "God, guns and Guts" mentality. They are not shy about expressing that the only truth is whatever Fox News has to say about an issue. The country is in moral collapse, and the coast will be first to go, and if you don't carry a gun, hate you government and want to see the end of the socialist overlord illegally occupying the White House, you don't belong. Now, all of this gets discussed on the down low, once they thing that you are a suitable candidate for being a friend and neighbor, but it's all pretty shocking to deal with, and not how I want to live my life. When you see the Clive Bundy and Western Colorado secessionists in the media, and think "look at these kooks" it's a bit shocking to discover that, once you peek behind the curtain, they have got a lot of quiet backers.