God's injustice towards Adam and Eve

[ShaMan]

If they had no knowledge of good and evil (since they hadn't yet eaten of the tree of that fruit), then they shouldn't be held to account for the 'evil' act of disobeying god, since they had no knowledge that it was evil. Furthermore, all subsequent decedents should likewise not have to bear the penalty for a 'sin' since sin is committed with the knowledge of evil (which neither Adam nor Eve had prior to 'sinning' by eating the fruit).