I believe Adam and Eve were very real human beings, created uniquely and separately in God's image in a perfect world, and that Adam's sin........his fall........is the cause of the physical problems in the world, and our own death and disease.
That's why Jesus came.......and HE wasn't an allegory.
I believe you have to twist a whole lot of Scripture to believe that God just used evolution to create man, and defy your own sense of logic as well.
Put simply, theistic evolution doesn't make much sense, when it comes to man's unique creation.
It doesn't make since that Jonah spend 3 days in the belly of the world but go on with your beliefs.