What Tertullian said about the subject (for some reason you avoid quoting the passage directly) was the following:
Because God is in like manner a Father, and He is also a Judge; but He has not always been Father and Judge, merely on the ground of His having always been God. For He could not have been the Father previous to the Son, nor a Judge previous to sin. There was, however, a time when neither sin existed with Him, nor the Son; the former of which was to constitute the Lord a Judge, and the latter a Father. In this way He was not Lord previous to those things of which He was to be the Lord. But He was only to become Lord at some future time: just as He became the Father by the Son, and a Judge by sin, so also did He become Lord by means of those things which He had made, in order that they might serve Him. Against Hermogenes 3
Who does Tertullian sound like here, someone who believes Jesus came into existence or a Trinitarian? If we’re being honest I think the answer is very obvious.