Jerry Coyne has posted a graph showing why (see below) [Acceptance of evolution vs. religiosity in the U.S.]. It reminds me that some parts of the USA are much more like Canada and Europe. It reminds me that I shouldn't assume that Texas (or North Carolina) represents the whole country.
It also reminds me of a conversation I once had with a well-known defender of evolution. That person expressed serious concerns about a possible second civil war if trends continue the way they are going. (It might not mean war, but the point is that the Union is fragile and there are many good reasons for splitting the country.)