So once we've proven that the Jesus of the Gospels is a fictional literary invention, there really isn't anything left, because the Christian Jesus is the character described in the Gospels. It's like saying that maybe Harry Potter is real, but he wasn't a boy, he wasn't named Harry Potter, he wasn't a wizard, he never went to Hogwarts, etc. "He" was actually a little girl who lived in Africa and died when she was 10 years old. I mean at that point its all just nonsense.