According to David Williams writing on resurrectingraleigh.com,
Is Genesis a myth? Ever since George Smith discovered and published the ancient Babylonian creation story, Enuma Elish, theologians, biblical scholars and informed lay people have been aware of the fact that the book of Genesis was not written in a literary or cultural vacuum. As other ancient Near Eastern creation stories have been brough to light we have come to know a lot more about the intellectual, cultural, theological, and literary milieu with which Genesis was written, giving us an unprecidented opportunity to assess just what sort of text Genesis is. What is Genesis’s genre and how ought we to read it if we are to do so responsibly?
The majority report among mainline biblical scholars is that the ancient texts which Genesis 1-3 resembles most are ancient Eastern creation myths, an observation which suggests that that is probably the best way to read Genesis, as well. . .
Williams goes on to explain how Christian apologist (and Mormon literary hero) C. S. Lewis dealt with the issue:
For Lewis, “myth” is not a bad word. It does not necessarily carry connotations of falsehood or contrivance or deception or muddleheadedness. For Lewis myth is a highly imaginative way of speaking about the world that can speak truth at least as well as history or science can. For Lewis, “myth” does not automatically mean false.
. . . [Lewis] was a professor of literature, a man trained in the reading, understanding, and appreciation of texts, and his literary instincts, given the available evidence, led him to the conclusion not only that Genesis was myth but also that that was perfectly fine.