I think it all depends on what you know, like what you grow up learning. If you come from a religious family, you are inclined to believe in what the bible says, not what science says. If you were taught right from the start that evolution is how we came to be, that's what you will think. Personally, I don't think that evolution is challenging the system, because the bible and religion isn't the system. Evolution and Adam & Eve are two different theories; there isn't one that's better than the other, and neither of them have more believers than the other. I don't think that either theory is wrong, because that's basically what they both are-theories; that is, until totally proven correct.
I think the idea of evolution has gotten us a long way. Without it, where would we be? There would be no separation of church and state, and people of other religions may be shunned. We would not know about adaptation, and so would not be able to adapt ourselves. I am extremely atheist, and I think that people that get upset over talking about evolution in classrooms need to get over it.
Comparing religion and science, even though people think they line up, is hard to do. Religion is faith. It is belief. Values. Morals. Science is so opposite from that. It is hypothesis, experiment, retest, prove and disprove. There is no text that states this and that and leaves everything open for interpretation as the bible does. What is learned in science changes all the time. That being said, I think it's a shame that creationists and evolutionists have come to such a break in society so that you have to be one or the other.On a personal level, I'd say I fall way near the Atheist end of the spectrum. I went to church to listen to the music and eat animal crackers... the stories didn't make sense to me. I read the bible for fun, as a story. And it has stuck in my mind that way. But science, for me, is more than story. It is easier to gather and believe when someone can say, we think this happened and here is what we have to show for it. That, I understand.I don't think that evolution is challenging the system. Well, how it was brought about, yes, but the theory itself, no. Think of it this way: if all along we had been told that the Earth came about in the big bang, and that we all had evolved from one source, one organism to what we are today and all of a sudden someone comes about saying, "hey, what if a higher power somewhere spontaneously created everything and everyone? What if all that science stuff is wrong and instead this guy, Adam and this girl, Eve..." and so on, then everyone would think that person was absolutely insane. Sure, he'd be challenging the system, but so would any new theory for such a confusing and unknown topic.