The idea that Mary is divine has no basis in scripture. Mary was a virgin chosen by God to bear Jesus. and nothing more.
This difference in doctrine is in fact a major difference between the Catholics and say the Baptists.
What is not assumed by God is not saved, unless God takes on human nature, he cannot purify his creatures. This is the mystery of the incarnation. God "emptied himself, taking the form of a servant, being made in the likeness of men;" (ASV Phil 7:2)
If Jesus did not assume his humanity from his creation, namely from Mary, how did he get it? How can Jesus assume the nature of man without assuming the nature of man? Only in Jesus is sin obliterated, do not we believe this? That the Son of Man has the power to forgive sins?
What if Jesus popped right out of thin air? Why go through the trouble of birth?
Because, he wanted to be intimately united to man, this is why he shares a genealogy in Matthew's Gospel.
In Jesus the divine and the creature are united, and by that, our humanity is saved by the obedience of one sinless man.
I have read every post up to yours, and I have yet to see anyone claim Mary is divine.