People like binary arguments...because it is easy to pick one side and ignore the other.
The Bible is full of "both-ands" which puts the carnal mind at a severe disadvantage. The carnal mind gravitates to one pole in any given polarity. That's how we know what is carnal and what is coming from a deeper spiritual understanding.
So we have a binary set of choices: Either Jesus is God or He is not. The Bible is full of statements that seemingly support each view...that's why people will gravitate to one or the other. And this is by design. It takes wisdom and discernment to include ALL the verses before jumping to conclusions.
On the "side" of Jesus being God we have a further complication of Him having to be co-equal with the Father if you want to agree with a pre-determined stance....that of adding 1 plus 1 and getting 3.
But we are set free in Christ to see the truth without opting for one extreme view or the other. We don't have to choose what is offered to us by religious tradition. The truth is too nuanced for the carnal mind...so either one extreme or the other is agreed upon...by mental assent.
The truth that the Father is over all is lost to those who MUST believe that Father and Son are co-equal. Consequently, the statement ...the Head of Christ is God...is ONLY accepted by those who deny the divinity of Christ. And yet one statement in the Bible does not negate another. Is it not possible that the Father is greater and that Jesus is also God? A smaller part of a greater whole?
So then based on our carnal perceptions, we divide over what is true.
And that is also by design. God does not want us all agreeing on the same error. Babylon is the result of missing the truth.
We are meant to agree by being of ONE Spirit...not one opinion. Until then we will quibble over which verses carry more weight than others...always learning but never coming to the knowledge of the truth.
God loves binary arguments, because the truth is binary. Philosophers love binary arguments made more complicated than they are:
This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.
But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ.
Debating about the relationship of God the Father with God the Son is one thing, but pushing a son of God as a god of heroics worthy of deification is paganism 101.
Now, so far as there a 'smaller part' of a greater whole is a carnal view of the Father, Son, and Holy Ghost being one in the Godhead.
Neither of them are 'smaller', because there is no God that is smaller than God.
And so far as the Father or the Son being greater than the other, that was only while the Son was a man on earth in obedience to every pleasure of the Father, Which is the example He set for us who would become sons of God.
But now, since the Son is highly exalted above every principality and power, which includes the power of God, then it is now the Son that is greater than the Father, because the Son sits on the right hand of the Father in His throne, and the Father sits on the Son's left hand in His throne.
And that throne will be the eternal throne of God and the Lamb: no more the Father and the Son, but only God and the Lamb, The Lamb being forever distinguished and honored with God.
And your 1+1=3 mathematics is also carnal: There is no God + God in Scripture.
There is however the spiritual truth of infinite analysis: 1 and 1 and 1 is Three.
For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.
Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God. He that abideth in the doctrine of Christ, he hath both the Father and the Son.
Both the Father and the Son. Not Father plus the Son.
The pint is that the truth is always black and white, dark and light. To say otherwise, is the philosophic man trying to was spiritual.
Jesus was and is God, or He was and is not. And if so, then God the Word was and is God the Son.
There is no maybe God nor partly God nor smaller God. (Notwithstanding the movie titled,
'Children of a Lesser God')
God is either God, or He is no god at all, and so the Son is either also God or He is not God at all.
jehovah idolators have made Him to be a pagan god, and so is no god at all, and will be destroyed with all such gods that were never with Him in the beginning.