To follow up on what GGG said, a further reason for opposition to evolution is that if we deny what Jesus said when referring back to Adam, we are implying that He is a liar. If He were to be a liar, He could not be our Savior.
Sure, it MUST be literal because as we know the Lord never spoke in metaphors or parables...
Maybe the Lord was talking philosophically that since the beginning of human consciousness we have sinned and forsaken God?
If the Bible is exact historically, then explain Cain's wife. It's NOT in the Bible, and there ARE no other children from Adam and Eve until after Seth (which happens after Cain's wife gives birth to Enoch).
Apparently Cain had a wife that was not born or Adam and Eve (if you read the Bible literally). So where did she come from, since there weren't any other people at that time except for Adam, Eve, and Cain?