Bill D often points out the evil people can do based upon specious logic.
Even Hitler or Putin have done evil based on what they saw as beneficial to their own constituents or themselves.
But there is the more common everyday evil by average people based upon ignorance. In this sense I suppose the concept of we are all sinners is true. Original sin however is nonsense.
I believe it is an unintentional evil when people actually do not know or know the wrong things. These people are capable of redemption.