Traditional Christianity is dying. But there's a progressive movement within it that I think has a good chance to salvage something worthwhile from the traditional version.
With some careful tweaking, Jesus can be presented as an exemplar, what the human character ought to be, useful for Christians and non-Christians, whether he was fictional or not.
Jesus will have to love unconditionally because conditional love (I will love you if you please me) is a lesser kind of love that arrogant people offer as a manipulative device to coerce compliance with their wishes.
Jesus won't be presented as a front man for an unjust, vengeful god that loves conditionally (accept the Christian doctrine or you will go to Hell). Instead, Jesus will offer an example for people who strive to become better human beings as their only form of worship.
Jesus can't be presented as a pacifist. Consider this rabid dog analogy: We see a rabid dog in the street and recognize it as a danger both to human and animal life, so we have to kill it. We regret that the killing was necessary. The only thing we hate is our ignorance in not knowing how to cure rabies. The killing was an act of love for humanity and for other animals. Jesus would see the necessary killing of dangerous human beings in self-defense as ultimately an act of love for humanity.
Jesus would hate the sin but love the sinner. Consequently, he would see the wrongdoer as sick not evil. Thus, progressive Christians will advocate quarantine and not punishment for offenders. For example, child molesters might be sent to an adult-only town for life or until cured, even on a mild first offense. There, they could live and work normally but without access to children. The result would be a safer world for children.
What are your thoughts on this topic?