The problem is the function of religion isn't the same as its structure.
Any structure, from galaxies to communities, has some central point of reference. The eye of the storm, the grain of sand at the center of a pearl, the black hole at the center of a galaxy, the creed, principles and heroes around which a community, a nation, a religion, or even a corporation are centered.
Without which, it will break down, splinter and go Tower of Babel.
Yet what you are pointing out, the details, are more like the bands around the storm, the layers of the pearl, the stars swirling around the galaxy. The complexities, not the simple.
The problem with monotheism is that such ideals are not absolutes. While the essence of the organism is synchronization, everything on the same wavelength, the essence of the ecosystem is harmonization, that all the various entities trade energy round in a larger dynamic.
Remember that democracy and republicanism originated in pantheistic cultures. The family and cycle of life as godhead. The young god, born in the spring, of the old sky god and the earth mother. Though by the age of the Olympians, tradition had prevailed over renewal and Zeus didn't give way to Dionysus.
To the Ancients, monotheism equated with monoculture. One people, one rule, one god.
The formative experience for Judaism was the forty years in the desert, giving the Ten Commandments to the Old Testament. Which are basically rules for a functional society. Obey the tribal spirit, or general consensus, don't mess with your neighbor's wife, or take his stuff, etc. Not quite trial by a jury of one's peers, or freedom of speech, but a good start.
So the story of Jesus, royal blood crucified for questioning the power of the establishment and risen, proved to be a powerful narrative in the relationship of these different models. The one rule, but with the renewal of the Trinity.
Jesus was all peace, love and turn the other cheek, except when it came to the moneychangers and that's when they crucified him.
Yet by the time Rome adopted it as state religion, it too had started to calcify, so what mattered was validating the Empire rising from the ashes of the Republic. The Big Guy Rules.
Renewal as basis of the Trinity was hidden by the Holy Ghost.
Though Martin Luther did try pushing the reset button, but only over the corruption, not the tradition.
When the West went back to democracy and republicanism, it required the separation of church and state, essentially culture and civics. Which is profoundly socially schizophrenic. It's like you posting out the complexities of the development of the Bible, to people who just want the basic center/village alter of their society.
The problem is that ideals are not absolute, so that when one group assumes their ideals as the only one and true, then all others are not only false, but an affront to the one true belief. So it is all against all. As we can see playing out in the religious wars that are still occurring.
A spiritual absolute would be the essence of sentience, from which we rise, not an ideal of wisdom and judgement, from which we fell. More the light shining through and animating the film, than whatever narrative is playing out on it.