That's flame bait, frankly. You, the purported former Catholic, ought to know that Christ was the one crucified; Mary certainly suffered as much as any mother would from love of her Child; Mary's DNA was certainly 1/2 of Christ's DNA, but just as YOU are not your mother, neither was Christ His mother.
And in John 6, iirc, Christ did not say, "This is my mother's blood," He said, "This is My Blood, the blood of the new and everlasting covenant" and the same thing about the bread, "This is My flesh."
Putting stuff like you posted on the thread only makes proddies of whatever denomination look stupid.
Actually, the comment that started this particular exchange: "Moreover, one must remember that the Blood of Christ shed for our sake and those members in which He offers to His Father the wounds He received, the price of our liberty, are no other than the flesh and blood of the virgin, since the flesh of Jesus is the flesh of Mary, and however much it was exalted in the glory of His resurrection, nevertheless the nature of His flesh derived from Mary remained and still remains the same (de Assumpt. B. V. M., c.v., among the Opera S. Aug).”Pope Leo XIII makes Pope Leo look ignorant. I'll resist calling him stupid because science had not advanced enough yet for him to make that statement with any authority - certainly not with any infallible authority.