According to a recent gallup poll 46% of Americans believe in creationism. If you include intelligent design the number goes up to a staggering 78%.
If only these people also decided not to enjoying the fruits of the research based on the theory they are rejecting (Meaning most of modern medicine)? Due to Darwin's survival of the fittest it shouldn't take too long until these numbers turned a little bit saner... Since creationists don't believe in that premise (At least not when applied to humans), I can't see them having any moral dilemma with it either.
On a more positive note Richard Leakey predicts that in two to three decades the debate about evolution will be over due to a preponderance of evidence. I'm not so sure that I am that optimistic though since when we are dealing with faith, evidence unfortunately seem to not be in a big demand.
I have to admit I don't understand why it's only in this country that mainstream religion seem to have such a big problem with the theory of evolution? In most other countries it is only fringe nut jobs that are advocating creationism, while in this country we have serious debates over teaching it as science in school. In the end I think it comes down to fundamentalism being scary no matter what religion is practicing it and we just have a lot more Christian fundamentalism in USA compared to most other countries.