Your soul exists before birth, it is not created by your mother. Mary bore and gave birth to the 100% man and 100% God Jesus Christ. The human and divine natures are utterly intertwined. She did not give birth to just a physcial husk that was later filled/possessed by the Word. She did not bear the Father or the Spirit, but bore the Son, the 100% man and 100% God part of the Triune godhead
Hold on there...are you saying that there are a whole bunch of "souls" sitting around somewhere waiting to be sent to a human body? When God created Adam, He breathed into him and Adam became a living soul. There have been deep theological arguments about when a soul actually begins or at what stage a human life "gets" its soul, but the idea that there is a finite "container" of souls waiting to become human life sounds like something Mormonism teaches. Of course our mothers didn't "create" our souls, but our souls wouldn't have existed until our bodies were conceived.
In the argument about Mary, I don't think you can compare our existence with that of the Son of God. Jesus certainly ALWAYS existed, He never had a beginning, therefore, when He was incarnated, took on human flesh, it was His HUMANITY that had a beginning, not His divinity. We, on the other hand, did not preexist our mothers. But Jesus did. The reason people object to the title, "Mother of God", is NOT because they reject the divine nature of Jesus, nor do they disrespect Mary, it is because that title has caused misunderstanding as to Mary's very nature and purpose as well as spawning a cult of Mary that misdirects the glory that belongs to Christ, alone.
Sounds like Mormonism to me!