My point is that I think there are probably some pretty better arguments for the trinitarian position then you are letting on.
as far as I know there is no jew alive who believes that the god of the hebrew bible is a trinity and there is no historical evidence that
any such view was every seriously held by any jews outside perhaps the kaballah which is heavily influenced by the mystery schools.
so with that as a given... the followers of Paul and Jesus were originally jews who presumably believed that there was one God, the father of all humans and that all other pagan gods were either demons or simply delusions.... the jews as a whole also held that besides God, on his side of the equation, there existed the heavenly court which consisted of divine beings [Beni-elohim = those of the guild of god[s]] of which Jehovah was the EL Elohim or the God of gods as it is written in the Torah....to the Jews this in no way made them poly-theistic in their own minds as their one God, Jehovah was the supreme being, the father and maker of all, the source of all, etc. When they contrasted Jehovah as the sole God, it was not in reference to his own family of divine beings, but in contrast to the pagan god[s] which are denegrated as mere delusions of wood and stone representing nothing. when it says Jehovah is the only God and there is no other, it is also speaking against these pagan gods... Jehovah's divine family is not mentioned in this context and is not implied either.
The bible often uses Elohim as a positional title as when Jehovah tells Moses that he would make Aaron the mouth peice and Moses would become his El or God...the one making the promises. Moses was informed that Abraham Isaac and Jacob only knew Jehovah in this capacity as El Shaddai -- the maker of great promises, the source of all things... but that Moses and his followers would learn the true meaning of the name Jehovah - I am becoming what I have promised... the fulfiller of the promises.
The promise of the seed, the savior of the fallen mankind, was never equated with Jehovah becoming a man.... Psalms 110:1 shows that David recognized Jehovah telling his LORD, the one who would become lord over all mankind as the annointed savior, the king of all men...that in this one the promises would be fulfilled.
Daniel, in Vision sees the ONE ancient of days attended by his court, his divine family...and from a source described as the moutain and made without hands, comes the chosen one, as one from among mankind, but not from any human governmental source... he is Given the power and authority over mankind that he was destined to receive...but did not by nature possess.
this distinction is key because it is never altered one bit in the greek bible.--- Jesus often speaks of being Given, Granted, receiving-- from God, his father and having authority to distribute as he pleases and sees fit.... Things like healing the sick and forgiving sins are seen by trinitarians as proof of his God-hood, however he gives these same things to all his followers and he gives them the right to become as he is, son's of God and he as their older brother.--- heirs of God, joint heirs With christ.
I go to MY father and YOUR father, my GOD and YOUR GOD.
which matches what Paul states as well.... to US there is but ONE GOD, the FATHER, and one lord Jesus Christ.
and, there is ONE mediator between man and GOD, the MAN, Jesus christ.
****************and also makes sense of the passage which says that God subjected all things to Jesus, with of course the exception of himself....and when all these other things are finally subjected to Jesus, he will turn over all authority back to his God and Father so that God can be all things to everyone. which really makes no sense if Jesus is God.