Genesis one in Hebrew describes God talking and breathing. Evidently. That became God and his word, and his breath personified, embodied.
And after that his word, and his spirit became the word, and the spirit.
So now there are 3 fully top tier divine entities in eternity beyond creation. First, the father in his person and next to him next to his throne, the word, and the spirit.
I think Bart Ehrman is broadly accurate in his book how Jesus became God. When he asserts that Jesus was protrayed in divine terms in spiritual competition with Pagan cults of the empire, especially the prominent Imperial cult of the Caesar’s and emperors.
Jesus was portrayed as more divine than any other figure. In Pagan Society, he was more demigod than Hercules and Alexander the Great. And more divine then Julius Caesar and Octavian Augustus (and the Ptolemaic Pharaohs of Egypt) and more the son of God, then each succeeding Caesar Emperor was the adopted son of the previous defied emperor. And so on.
The Trinity allows you to accomplish that Jesus Christ in his divine nature is literally. The next thing to the God the father himself in his person directly such that Jesus is more divine than any nephelim nimrod like figure prominent in previous prior Pagan Society.
Apparently, nobody stare directly at the Caesars. The Emperor’s full in the face and said “no. They are lying. They put their pants. On one leg at a time or there toga on one arm at a time” or what not.
Rather, the manifestation of Divinity in and around those persons was acknowledged and accepted. Only qualified by saying that the divine was even more manifest in Jesus than them.
If you are correct that strict unitarianism is correct, then there would have to be some sort of “reflected echo” of all of that Paganry overcome this way in modern Christianity.
Any variety of Christianity that portrayed Christ as “just some guy inspired to talk” did not overcome the Egyptian Pharaoh like Imperial Caesar cult of the empire. Only the variety that fought fire with fire and said “yes. But even more so for Christ” won.
The Christ, who did win and did emerge from Pagan Gentile society. Victorious was the Christ, who is the “true Pharaoh, the true Caesar”. The true incarnation of (Just about) the true divinity.
Not just “some guy on Earth inspired to talk on behalf of. Heaven”.