Morality aside, it occurs to me that much of the problem people have with the Theory of Evolution is that they keep hearing about how we're descended from apes. People don't like apes. They're smelly, ugly, and have bad habits like scratching their butts and masturbating in public. No one wants to think that they're descended from that. If we where descended from cats, for example, it would be different. Elegant, beautiful cats. It wouldn't be so bad then.
I think there's a real ape prejudice out there which taints the issue, never mind the religious objections that people have.