Mary's parents were St. Joachim and St. Anne. So of course, she was fully human and just a creature. However, among creatures, she was the mother of God and therefore preserved from all sin for the purpose of the incarnation. God could raise up children of Abraham from stones says John the Baptism. Do you not believe he could make his own mother "full of grace"?
Mary had a human father, therefore, a sinner needing saving. I'm sorry this is hard for you to accept.
Mary's parents were St. Joachim and St. Anne. So of course, she was fully human and just a creature. However, among creatures, she was the mother of God and therefore preserved from all sin for the purpose of the incarnation. God could raise up children of Abraham from stones says John the Baptism. Do you not believe he could make his own mother "full of grace"?
God can do as He wishes. He did not do as you suppose He did.
Let's end it here, pede. I'll gladly read your next response but I won't reply myself.