Jesus said, “The father and I are one.”
Perhaps, the word “greater” implies that the Son proceeds from the Father, which is why the Church Fathers all agreed that the Son is “begotten” eternally of the Father. These are the words of the Creed. True God from True God. The Son “comes out” of the Father as the eternal consequence of the nature of God.
A father does not create his son when he has one. He begets him in the sense that the son will have the same nature as his father. Perhaps the human father and son relationship is something like a metaphor of the eternal sonship of God the Son, the Son proceeding eternally from the Father. This is the way ALL Christians have always understood what Jesus meant by Son of God. It is a legitimate alternative to yours. In fact, it comports far better with all of Jesus’ words and deeds. Yours does not, you have to explain away most of what Jesus said and did.
Augustine gave the analogy of human consciousness wherein our self-identity or self-image arises from our nature as conscious persons. In a real sense, our self-understanding begets a second self; there is the self that is doing the understanding and a self that is understood. If the analogy applies to God who has perfect self-knowledge, and is Being itself, then his conceived likeness would be a perfect image of himself in goodness, power and knowledge: his eternally begotten Son, Jesus, true God from true God.
Just as our self image arises from and is dependent upon our initial conscious personhood, so God the Son arises from the ground of his being and nature, the Person of the Father. Since God is always and forever, then he would conceive or beget himself eternally. The Person who the Father conceives himself to be, the Son, would be eternal and never was there a time when he was not because the nature and self-awareness of God is eternal. This is why Jesus said, “Before Abraham ever was I AM.” He is not a created being but the eternally true God from true God.
My guess is that you are reading into Jesus’ words what you want to be there, rather than letting Jesus speak to you through his words.
You are afraid to let God tell you who he is, so you keep defining God the way you want him to be, so your God is limited by your capacity to understand him because he the way you conceive him.