I think you need to study it some more before assuming what you think you know about it is true
why did Abraham survive the fire...but his brother Haran (fire) did not?
I don’t believe Abraham existed. But that’s beside the point.
Let’s just agree Abraham existed for argument sake. For him to get married to Hagar, shows there were people in other parts of the world during Abraham’s time (we can even go all the way back to Biblical Adam & Eve). And I’m pretty sure these other people had their own folklore about creation. So, what makes the Abrahamic religions’ story of creation the only legit one?
In the Bible, people were living for 500yrs like it’s nothing. Doesn’t that tell you something?