Your last post has nothing to do with if Christ Pre-Exists.
Who here says God is doing nothing?
Jesus said, “Therefore Jesus answered and was saying to them, “Truly, truly, I say to you, the Son can do nothing of Himself, unless it is something He sees the Father doing; for whatever the Father does, these things the Son also does in like manner.” John 5:19
So your rant is off base concerning what I believe, but makes sense to you considering what you believe, and those of your same understanding of the doctrines of sin, trinity, soul, etc. In this example, your understanding of what is sin compels you to respond this way. It is why you have come to this conclusion and to cover this present understanding need to reconcile it by believing in the Trinity, that Jesus Himself is God, and not the Son of God who came from His Father, God. I said you believe what you believe because your doctrines have set you up to believe it in this way, not that it makes sense according to the Scriptures, or if for any reason your definitions of sin and the soul change.
Paul said, “For us there is but one God, the Father, from whom are all things and we exist for Him; and one Lord, Jesus Christ, by whom are all things, and we exist through Him.” 1 Corinthians 8:6
Jesus said, "You heard that I said to you, ‘I go away, and I will come to you.’ If you loved Me, you would have rejoiced because I go to the Father, for the Father is greater than I. John 14:28
I used to believe sin was something too, that it is not. I also was compelled by this definition of sin, that Jesus had to have been God and I also was compelled to believe that because sin was that thing which dictated what salvation is.