The fact is that Luke by inspiration calls Adam the son of God. Scripture also tells us that God has never called angels 'sons'.
Actually, angels are referred to as "sons of God" but you just refuse to acknowledge it.
"Now there was a day when the sons of God came to present themselves before the LORD, and Satan also came among them."
"Again there was a day when the sons of God came to present themselves before the LORD, and Satan also came among them to present himself before the LORD."
These who are referred to as "the sons of God" are not men presenting themselves before God as you suggested. The angels, the sons of God, are presenting themselves before the Lord and Satan appeared with them. You would have us believe that men are presenting themselves before the Lord and that Satan appeared with them? That Satan appeared with them would demonstrate that the sons of God were of the same type or genre as Satan, i.e. heavenly beings, not of mankind.
Furthermore, there is nothing in the contest that would infer that these "sons of God" are appearing before God in the earthly temple, which by the way did not yet exist at that time. That they appeared before God would infer that this took place in His presence in heaven and not on earth. Below is Enoch's version of Genesis 6:1:
"It happened after the sons of men had multiplied in those days, that daughters were born to them, elegant and beautiful. And when the angels, the sons of heaven, beheld them, they became enamored of them, saying each other: Come, let us select for ourselves wives from the progeny of men, and let us beg children."
The angels co-habiting with human women and their offspring who became giants and all that the angels, the sons of God, taught mankind, which were the things of heaven and which was the reason for the corruption of the world and the resulting flood. Enoch even mentions Noah and how to escape the flood:
(God speaking to Michael, Gabriel, Raphael, Suryal, and Uriel regarding those angels who sinned)
"Then the Most High, the Great and Holy One spoke; And sent Arsayalalyur to the son of Lamech (Noah), Saying: Say to him in my name; Conceal thyself. Then explain to him the consummation which is about to take place; for all the earth shall perish; the waters of a deluge shall come over the whole earth, and all things which are in it shall be destroyed. And now teach him how he may escape, and how his seed may remain in all the earth. (Enoch 10:1-5, Gen.6:11-22)