Just a couple of points.
The Bible never says anywhere that evolution did not happen. Some people have chosen to interpret the Bible that way, but there is no explicit
indication anywhere in the Bible that evolution has never occurred.
Yes, the Garden of Eden story implies incest... it's never been suggested otherwise. But I believe you'll find that the people who actually wrote
that story (you know, the ancient Israelites) felt that it was symbolic, not literally true.
Doesn't change what's written in the Bible, nor the belief of anyone who holds the Bible dear. In fact, there are lots of people written about in
the Bible who are not very nice people at all, and many actions described that were not very nice actions at all. The Bible has very few illusions
about the nature of humankind, it simply suggests there may be a better way to behave.