The teaching of original sin by Augustine was based on his faulty understanding of Genesis and the core misogyny of his day. Genesis was myth when written, not history. Error is error. The real story was about blame and an allegory about why we must work the land (the reality is that we work the land because there are too many of us to life on hunting and gathering). It is much richer to see the Passion of Christ as a solution to blaming self, others and God then it is to see it as the bloody sacrifice to a codepedent orge (as Anselm essentially taught, which was good for indulgences but bad for the faithful).