That would require chucking out pretty much the whole Bible. I know we're going into liberal Christianity here, but some of it has to be held as true, doesn't it?
In general, christopagans hold the "Love your neighbor as yourself" part as true. As well as Jesus healing people, being crucified, etc. How much do you require they hold true before it's enough?
I think the parts about Wiccan nature-worshipping and God's condemnation of nature-worshippers is a little hard to reconcile, yes.
I think you're expecting Christian wicca (or wiccan Christianity) to look, simultaneously, like orthodox Christianity and traditional wicca, when it looks like neither, borrows from both, and is a completely different creature.
Take a liberal, gnostic Christianity, add magic and nature worship, throw in some references to pre-monotheistic Judaism, and you'll be getting close to one variation of christopaganism.
Or, if you subscribe to the trad-wiccan "All gods are one God, all goddesses are one Goddess" idea, think of it as wicca that puts different names to the deities. YHVH, Jesus, and Sophia fit nicely into the Divine Source, God, and Goddess paradigms, and if it can be done with Norse, Egyptian, Celtic, and every other pantheon, why not that one?
Or you might get something that looks, and smells, a bit like an inverted Thelema - Do as you love be the whole of the law. Will is the law, will under love. There is no law but to act out of love. That person might go to church normally, etc., but be (by orthodox standards) decadent and immoral, because they are taking their will and fill of love.
Or you get a goddess-centered religion that says Jesus was the son of the goddess, came to speak about Her, and those who recorded what he said couldn't handle that idea under their patriarchy, and things got distorted.
Or you could get an eclectic wiccan who just adds Jesus into their deities, not even bothering with YHVH and the Jewish paradigm, and deals with "Love your neighbor as yourself, and love God before all things." No need for anything else Biblical there.
But, if you say "It's not orthodox Christianity, or anything I recognize as pagan," you've missed the boat entirely. It's not going to be either of those, but some third thing.