[Jhn 1:18 KJV] 18 No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared [him].

[Jhn 1:1 KJV] 1 In the beginning was the Word, and the Word was with God, and the Word was God.

These verses place Jesus solely alone with the Father so there can't be a pre-existence.

Placing us with Jesus in a pre-existence poses the problem of God not being uncreated and debasing Jesus down to our level as being brothers and sisters in a pre-existence.