Jesus was and is the Son of God not in the same sense that an earthly man is the father ie progenitor of a son.
Jesus is the Word of God, not a creation, but part of God in the same way your voice is part of you yet not you. Jesus is the Word of God, the means by which the ineffable father interacts with the material world.
Mary is the mother, the womb bearer of the Son, her creator, her God.
My mother didn’t create me, God did. The same for you.
That brings up an interesting point. The Holy Spirit (third person of the Trinity and God, Himself) indwells every believer. Is this not more important than being the "womb bearer"?