No one has argued she is pre existent to God. She is the mother of God incarnate ie Jesus. Therefore the mother of God. Not diety. Not eternal mother. Not mother of Pre incarnaye Godm You have been arguing God was in Jesus, but not God himself. You have moved the goal posts.I do not deny the divinity of Jesus. I just deny Mary is the mother of God. God has no mother. God created mothers.Is Jesus the I Am?
Before Abraham existed Ego Eimi. I AM. Look at the LXX in exodus. Tell them Ego Eimi sent you. Tel them I am sent you. Who was the I Am? You are a baptist... you cannot be a baptist and deny the divinity of Jesus. My entire fathers side of the family was Baptist deacons and preachers. If you deny the divinity of Jesus you are not a christian but a pagan. It is that simple even in protestant terms.
Name calling aka ad hominem is the first sign one has lost an argument.
Biblically you cannot make a logical argument that Mary is the mother of God. To do so you must first prove Mary preexisted God. Nothing and no one preexisted God.
You have faith that Mary is the mother of a god but not they God. It is not for me to judge if that faith is enough to save you. I like to believe it is because I trust God knows what is in your heart.
None-the-less those that lead people in such false prophesy are not being faithful to God's Word.