The fact that we humans are supposed to be evil. I don’t believe in such an absurd thing.
You don’t think you were born with original sin? You don’t think that unless you confess with your mouth to Jesus and believe in him then you are headed for hell? These are pretty basic biblical teachings. If you believe the bible, you have to look at the entire thing, not just the parts you like.
If people weren’t evil we wouldn’t need Jesus on the cross. Your idea of evil may differ from mine, but anything unclean in God’s eyes is evil.