Where did I say that, or more to the point, where did I give the appearance of saying that?
Misquote, conflate, beat a strawman to death. I understand how that type of argument is done... I just don't understand WHY.
Jesus Christ would exist without St. Paul, St. Paul, you, me, everyone and everything else, would not exist if not for Jesus Christ. I (and you I suppose) would exist without St. Paul having existed. I exist independently of you, you exist independently of me. When I close my eyes you don't cease to exist, much as I might hope that would be the case on occasion. We (and St. Paul) are not contingent beings, neither are we necessary beings.
Now... where it gets really interesting is whether or not Mary is a necessary being. Christ received His human nature from her, if another woman had been chosen He would have had a different human nature. Hilariously enough the only non-Catholic around here who would have even the faintest idea what I'm talking about and who would be able to have a meaningful discussion about it is an agnostic. Which goes to show how much better he expresses/deals with/explains/demonstrates the faith he rejects than you express/deal with/explain/demonstrate (all that to avoid using the word "understands" and thus be accused of mind reading... this is getting old) the faith you profess to hold.
It all goes back to the myriad of Christological beliefs of the early Church. Those who treated Christ as a mere man who was later "adopted" (Adoptionism), either at his baptism ("this day I have begotten you") or after his resurrection, depending which biblical author you read, Mary is completely unnecessary because the ontological change took place afterwords.
Those who treated Christ as a lesser God and an errands boy of the Father, seen in a myriad of Christological heresies such as Arianism, Modalism, etc., would also make Mary and incidental, if not random accident of no particular significance or necessity because his ontological humanity is a mere mask.
Since so many modern-day Protestant offshoots express the same Chrisotlogical beliefs as those early heresies, is there any wonder that Mary is trivialized and marginalized?
RCs just keep feeding us punch lines.
Was Mary's "human nature" any different than yours or mine or any person since Adam?
Read the Bible. God chose a virgin from the house of David to fulfill prophecy. He did not choose Mary because her "human nature" was different from any other human being -- fallen, corrupted by sin, doubting, fearful and egocentric.
If Mary's "human nature" were not the same as yours and mine, she would not have required a supernatural messenger from God to convince her of the truth.