Well, see I am asking you to explain how you can claim to be of a faith that is of the authenticity that the New Testament writers have conveyed if your reading of the story of Adam and Eve makes it out to be only figurative.
When Paul says that sin came into the world through one man and then it spread onto all men, he is telling us that his view is that the world didn't have sin in the first place. That means that there has to have been a time in history when the man who we know to be Adam, did the Original Sin. The impact of this question is to determine the validity of the belief system that claims to be Christian when it is not believing that he scriptures mean to say what they quite plainly say. St. Paul has given us an example of his faith in the earliest of Christian times, wherein he is viewing the story of Adam and Eve as being literal accounts. Any contradiction to that, even if it is by respected Theologians, must be a divergence from the type of faith that he was promoting.