People need to stop thinking of souls as natural objects and sin and sacraments as magic.
The current Catholic view of original sin is that it's a magic curse God put on Adam and Eve, allowed John to purge, and exempted Mary from. God does not work magic, He much grander and more subtle than that.
We need to recognize that God is vastly grander than anything our natural philosophy could imagine, and instead of trying to interpret everything He said in terms of natural claims about the natural world, recognize His philosophical and metaphorical arguments.
Sin is when we turn away from what God wants. Christ died because the Pharisees wanted to shut Him down for their own venal reasons and Pilate didn't do his job. Naturalists sound like they believe in karma when they say He paid our karmic debt.
Glory be to the Father, and to the Son, and to the Holy Spirit, as it was in the beginning, is now, and ever shall be, world without end.