Not really answering your post, just throwing out some thoughts sparked by this thread.
In itself Myth simply means ‘story’ or dramatic narrative, typically with a supernatural component.
As Tolkien averred: human myth is sub-creation: because we are created, we yearn to create.
Not just the ancient world, but the modern world also has created thousands of stories that (at their best) elevate and enoble us. For instance: think of “Star Wars” or the “Magnificent Seven”. These stories are not true, but they capture noble truths and/or engender childlike wonder.
And - being fallen humans - we also create stories that degrade and shame. I’m thinking here of “Saw”, “Evil Dead” and similar movies and novels. They are not true, and they are also degrading and hollow.
Now the Myth of Christ is no mere human story: it is The Whole Drama of Reality and it is told by God. It is not only true and real, it is more true and more real than we can understand.
The God that is both Priest and Victim. The God who is forsaken by God on the cross. The God who feeds us with His Body and Blood.
We can walk round these tremendous truths and examine them again and again, but never get to the bottom of them.
Also: we’re not passive observers of This Story. We are an intrinsic part of it. We only exist, after all, because The Author of All Things wrote us into being.
I don’t remember who said it, but “the great thing about God is the care that he takes with his minor characters”.
Hope this is helpful.
Perhaps it would facilitate understanding to use the word "mythic" instead.
Meaning that a story can be 100% true and still carry nuances, ramifications
and impact on the human psyche that give it the force of myth,
but with the certainty of fact.
Beautifully written!
Excellent, thank you.