See “Son of G!d” was originally (in the earliest existing Christian Churches—Armenian, Nestorian, Tewahedo) an affirmation of the adoption of Jesus by G!d (hence “Adoptionism”).
Radarmark, I respect your opinion too and understand your point. But if Jesus is just a man then the rest of the Bible would not make sense.
"Your father Abraham rejoiced to see my day: and he saw it, and was glad. Then said the Jews unto him, Thou art not yet fifty years old, and hast thou seen Abraham? Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I AM." (John. 8:56-58).
Jesus is the God in the OT.
"And Moses said unto God, Behold, when I come unto the children of Israel, and shall say unto them, The God of your fathers hath sent me unto you; and they shall say to me, What is his NAME? what shall I say unto them? And God said unto Moses, I AM that I AM: and he said, Thus shalt thou say unto the children of Israel, I AM hath sent me unto you." (Exo.3:13-14)
The “elohim” translated at Gen 3:22 is plural. But it is plural everywhere in the OT. It can be said to correspond to the royal we. See it is a matter of interpretation.
It is everywhere in the OT and rightly so. The Father and The Son.
Your Luke reference is off (Luke 1:34)

... It does not say “I am a virgin yet have conceived”.
Make of it what you will.
If He were just a human being and He didn’t come from anywhere, except His mother’s womb. Then someplace between coming out of His mother’s womb and going out and spreading the gospel, He had to find out who He was. Who told Him? When was He told? He couldn’t have been told when He was 12 years old.
At the Passover time, when Jesus was 12 years old they went up to Jerusalem and they were there for the feast. And it came to pass after they left they looked around in their company and Jesus wasn’t there. So they went back to Jerusalem, apparently they were gone a whole day and then they had to come back another whole day and then they walked around Jerusalem a whole day. They went to all of the places that they thought He might be and finally they found Him at the temple.
Luke 2:48
"And when they saw Him, they were amazed: and His mother said unto Him, Son, why have You thus dealt with us? behold, Your father and I have sought You sorrowing."
v. 49
"And He said unto them, How is it that you sought Me? Wist you not…"
v. 49
"…Don’t you know that I must be about My Father's business?"
v. 50
"And they understood not…"
They didn’t know who He was, Jesus is 12 years old and His own parents didn’t know who He was.
All these people dealt with Jesus and they didn’t know, His own parents didn’t know who He was. He was just a little boy that got left behind and they had to go back and get Him. He said
“don’t you know that I must be about My Father's business?”
So at 12 years old He wasn’t told, He already knew who He was! Not only did He know that His Father had business for Him to do, He was already doing it! He said I’m already about it, I‘m already doing it, at 12 years old. Well when did He know who He was?
The actual truth of any interpretation is not knowable. The scripture is the scripture. It is a set of words written down in Hebrew, Aramaic, or Greek long ago. The probable is for us to make sense of them, to interpret them. But those interpretations (mine that Jesus was the biological son of Joseph or yours that the Luke genealogy is actually Mary’s)
are not scriptural.
Nothing is left to interpretation. This is why scripture must ALWAYS be supported. This is scriptural:
"Knowing this first, that no prophecy [inspired writing or speaking]
of the Scripture is of any private [Gk: ‘its OWN’]
interpretation" (II Pet. 1:20).
"To understand a proverb, AND THE INTERPRETATION [or ‘puzzle’—the proverb itself is not also the interpretation]
…" (Prov. 1:6).
"Are you able to make known unto me THE DREAM which I have seen, AND THE INTERPRETATION thereof [the dream does not interpret itself]
?" (Dan. 2:26).
If scripture is supported by another scripture/s we have a witness/es...therefore nothing can be left to interpretation...are you with me?
"…that in the mouth of TWO OR THREE WITNESSES every word may be established" (Matt. 18:16).
Witness One:
"…In the mouth of TWO OR THREE WITNESSES shall every word be established" (II Cor. 13:1).
Witness Two:
"And I will give power unto my TWO WITNESSES…" (Rev. 11:3).
You see, radarmark...the thing with theologians is they constantly violate this law of scripture. We are to have at least a second witness to establish a Scriptural truth or doctrine.
From now on, if I am to make a claim, I will present AT LEAST two different verses of scripture. You should too...that way nothing can be left to interpretation.