Creationists are certainly an American political force that should be dealt with, not ignored, but I do think that these high profile debates really lower scientists by having them stoop to a level that is quite beneath them. You shouldn't argue with a fool because soon people won't be able to tell the difference.
Besides which, there is nothing philosophically incongruent in believing that creationism and evolution co-exist. The problem is that evolution is a scientific reality, and creationism is religious allegory. The two do not have compatible epistemologies or requirements for proof, and on those grounds I will always fight creationists. In no uncertain terms should creationism be considered scientific.