Originally posted by: Atomic Playboy
I think that's part of it. I think another part is that evolution directly contradicts the Biblical story of creation in Genesis, the garden of Eden, etc. Evangelicals believe that the Bible is the direct word of God handed down to the men who penned it. Why would God lie about creating the world in 6 days, or about creating woman from a rib? If you take the Bible as the direct testimony of an infallible God, you have to view everything in it as literal, and that precludes any assertions that the Earth is billions of years old, regardless of the evidence in support of it. The problem here is that no one takes the entirety of the Bible literally; you don't see people calling for the public stoning of people who eat meat on the sabbath. So, at best, it's kind of subjective which parts of the Bible are meant to be taken literally and which are open to interpretation. Logically, evolution could fit within that framework. But for some reason, the idea that we may have come from monkies and not been molded from dirt is highly offensive. I don't understand it personally.
The various flavors of revealed Christianity emphasize that God puts a unique and personal interest in one's life. There is a sense that God imparted something to oneself that God didn't impart to anyone else. The God-has-a-plan aspect.
God didn't make a plan for monkeys. Equating/associating humans with monkeys means either 1) monkeys are special or 2) humans are NOT special.
I think that religious AND non-religious people would agree that there's nothing more special about monkeys that wouldn't be "special" about any other species. Thus the logical conclusion would be that humans are NOT special. Everything that applies to monkeys applies to us.
If your entire worldview is founded on the idea that you are intensely and spiritually unique in the context of the entire universe, the idea that you're just another animal is pretty horrifying.