Non -trinitarians? isn't that believing in one true God. I'm not quite getting what your saying?
The Trinity is One God: The One Triune God. Christians believe that God is Triune: He has three persons. Completely beyond the limits of comprehension of our finite logic.
In contradistinction to your statement above, the very fact that Jesus is, as you also concur with, the Son of God, is the greatest testament and affirmation of His deity of anything else in scripture. He was begotten. Your huge hole is your insistence that begotten is the same as created.
Yes, Jesus is
eternally begotten of the Father. Again, our finite minds cannot comprehend the Trinity. It appears to be entirely beyond the limits of possibility. And to say that someone is a direct offspring of a parent (not adopted) is to say that that offspring is of the same exact substance of the person who begot it, gave it life. To say that Jesus is the Son of God is to say exactly that He is God.
Those who were alive at the time of Jesus understood this clearly. To hear Jesus say that God is my Father in Heaven and that the Father and I are one--he is declaring that He is God. There can be no misunderstanding of what he said at that time. It was very, very crystal clear to his direct audience. That is why they were going to stone him because if he was just a man then he would be speaking blasphemy.
When we say we are God's children we must specify that we are the
adopted children of God. If we actually say that no, I'm really God's child that he literally gave birth to me as in a physical way like I came from the loins of God, then we are effectually saying that we are God too and that would be blasphemy. But that is what Jesus was saying all the time he was here on earth.
So you only have two choices to make
according to God's revealed word: Was Jesus a blasphemer and not actually God? Or was he saying the truth and that He is God. There is no third option. Either he is a liar and committing a great disservice to humanity, some nutcase that needed to be put away and his death was good and deserved. Or, he is God. Those are the only choices you have. To make up another you are ignoring a large part of the New Testament so you are not actually making the choice from God's revealed word. You are making it from your own excerpts from the Bible.