Pray tell, at which point did I claim any religion as my own? I just get annoyed when people use baby's first atheism to make simplistic claims they can't back up. As if it were that easy. In another branch of this comment tree you refer to a story way later in Genesis. As far as I can tell, the reference to that story was an appeal to emotions rather than logic. You could use it as a reason why someone might want to reject the religions that include it, but not to prove logically that those religions must be untrue. Do better.
Anyway, my point, that the level of literalness of the original sin story is irrelevant to the theology building off it, stands. What matters to people who believe in it is that it tells them about original sin, not whether or not a literal fruit and snake were involved.