What I know is that God doesn’t have a mother. What I observe is that the RCC is deliberate in deifying Mary - creating dogmas that have no Scriptural substance for reasons that can only be concluded to be idolatrous.
I don’t understand why you can’t get this:
1. Jesus is the Second Person of the Trinity.
2. Therefore, Jesus is God.
3. Mary is His mother.
4. Mary is the mother (in the human manner) of God become Incarnate(Jesus, Second Person of the Trinity).
It’s really very simple.
What Church documents have you read that “deifies” Mary? If you haven’t read anything officially published by the Church, then you are just making it up from your “observations,” which might actually be incorrect!
If that's the case, you should be equally scandalized that God worked through a mortal being to become flesh, when He has no need of humanity to do anything whatsoever.
I understand why you don't think God has a mother. Logically speaking, it doesn't seem possible. But the Church teaches that since Jesus is BOTH entirely God and entirely man, they are inseperable natures which were given fleshly birth by Mary, His mother. She can't be at once, the mother of Jesus, and not the mother of the second Person of the Trinity (the Son, hence, God). Since Jesus, in becoming flesh, did not lose an ounce of Divinity, the relationship of Mary remains that of mother to both His human and His Divine natures.
The problem is that, if you deny that Mary was the mother of God, you're denying Jesus' divinity, since He (Jesus) is the Word (made flesh). How does it work? We don't know. It's a mystery as much as the Incarnation itself. Since God doesn't reveal all things to us, we have to work from inspiration and negative conclusions to ascertain that the alternative (Jesus is not divine) is a much harder pill than "Mary is the mother of the uncreated Divine", which requires assent to faith because it IS a mystery.