1) science has proven that there was no single couple that started humankind. We came from groups-- evolution works on species, never on individuals.It all goes back to "the fall." In Christian theology, Adam and Eve were ejected from the garden, and God withdrew His presence from our world. For your consideration, think on this if you will.
Since this is clearly true-- there never was an Adam nor Eve to fall.
2) let's pretend there was an Adam/Eve: the whole ugly tale is basically one of a god, punishing the innocent descendants, for the failures of their ancestors.
It's as if the teacher punishes the entire 3rd grade class of 2013, because of what a class in 1895 did ...
... only much-much worse-- from a **god** I expect superior morality than that.
3) let's pretend that the Garden of Eden story was real. There is only one character in that tale, according to the bible, who did not lie.
Do you know which character it was?
Hint: it wasn't Adam. Nor Eve. Nor god.
It was the snake-- he tells the unvarnished facts about life, to Eve.
Bible-god lies, though-- he promises Adam that the **very** day he eats the forbidden fruit, he will die.
Did Adam die on that day? No-- according to the story, he lives for thousands of days beyond that fateful day.
God lied. Adam lied. Eve lied. Only the snake tells the unvarnished truth.