What you are forming is a classic strawman. The situation you wish to present is impossible; if it were possible, someone would have found the boner long ago. Give me some reality.
I am doing no such thing. I was questioning your thought process. It has direct applicability here.
But, no matter. You want reality? Okay, here's reality. There is a set of irrefutable scientific arguments for the fact that the events in Genesis simply could not have occurred as described. Impossible under the laws of the physics and the universe.
Now, given that extra-biblical knowledge and that the text of Genesis says different things that cannot be reconciled, the obvious question is presented: does a believer in the bible reject the sure knowledge outside of the bible and believe the words in the book? Or does he believe that the bible is in error or his understanding is in error and believe what reason tells him to be the truth? Or does he simply disbelieve, a priori, anything that he fears conflicts with the text by asserting that "it's not true"?