because of such a terrible childhood, the loss of a family, he became like that, and you also say that he does not deserve forgiveness and his place in hell
If I were to make a fan version of william afton well he would have a split personality like Dr jackel and Mr Hyde my version of william would have 2 personalities 1 would of Course be the cruel heartless killer and the 2 would be the human side of him the father, the husband , the good inside someone who feels regret and suffers from loss someone who just wants peace.
he doesn't hate Clara but in my au they are just not married anymore they broke up and now they still lives together but for the kids my ship is vinliam