I agree with you. I think that although many people don't care either way, the Creationists who do care try to educate themselves somewhat on what they think is both sides of the argument. The problem is, this involves going to Creationist websites and books and learning arguements against evolution that are either irrelevant or have been debunked many times. The ones who would like to learn more end up learning a biased view of the evidence which strengthens their beliefs, even if people who believe in evolution have debunked their views a million times.
If you listen to sources about evolution, you'll probably end up believing in evolution. If you listen to sources for Creationism, you'll probably end up doubting evolution. If you listen to both sides, however, you'll probably go with evolution and learn much more about the problems with Creationism.