MeanMrMustard,
That is even a better question to ask.
Even though the early Christians were not strictly Trinitarians in the modern sense, they did see Jesus as the Incarnation of YHWH.
In Hellenistic and first-century Roman thought, a "son of" something was "one and the same with" that thing in the Greek idiom, and even sometimes in the Hebrew.
For instance, calling someone "the son of David" meant "you are the Messiah," in Second Temple era theology. This explains why people are shushing the blind beggar at Luke 18:37-39. The JW explanation is that there was a social caste system in Judea and the poor and blind were not allowed to speak up. But that wouldn't be the case as the crowds that followed and listened to Jesus generally are said to have consisted of almost entirely poor and lowly people.
No, the reason the blind man was hushed is that he publicly made a declaration that, according to Jewish law, could only be made by public consensus and announced in Jerusalem after formal assemblage of the Sanhedrin. He called Jesus "son of David."
Jesus was "son of Joseph," not "son of David." Jesus was merely a descendant of David. The term "son of," however means you are the "son" or equivalent to that which you are being spoken of. The blind man was calling Jesus of Nazareth the promised Messiah.
Jesus called John and James "sons of the thunder" because of their thunderous disposition at Mark 3:17, refers to a peaceful person as a "son of peace" at Luke 10:6, and calls Judas Iscariot the "son of destruction" since he had destroyed both his own life and that of Jesus. Do you see the idiom? (Note how Pilate, a Roman, reacts when he hears that Jesus is called a "son of a god" at John 19:7, 8 due to its implications based on the idiomatic expression.)
Calling YHWH his Father and claiming that he, Jesus, is the "Son of God" does not mean he is a creation or descendant of God but the Incarnation of YHWH, the Father, one and the same.
Just as "son of David" meant Jesus was Messiah, "sons of thunder" meant the brothers Zebedee were boisterous, and that the "son of destruction" was a person who brought destruction upon himself and others, "Son of God" means Jesus was calling himself the Father, calling himself one and the same as YHWH, the Incarnation of the God of Abraham.
Therefore the creator of the videos has created a paradox. As John 1:1 states, John not only believed Jesus was with God in the beginning but was one and the same as that God. Therefore the video creator is essentially claiming himself a Satanist if he upholds his own teaching. The "son of" God is God, and, according to the video maker, Satan, the video author's god.