Your failure to see is no argument against the doctrine; merely a humble admission of your ignorance; something all of us suffer from from some degree or other. Fr. Faber does not say that Our Blessed Mother isn't the Co-Redemptrix; merely that she is not the Redeemer equally with her son. But he does state that she is did co-operate with her son to a degree which no others approach in the redemption of the world.
Fr. Faber literally stated that
"Our Blessed Lord is the sole Redeemer of the world in the true and proper sense of the word, and in this sense no creature whatsoever shares the honor with Him, neither can it be said of Him without impiety that He is co-redeemer with Mary." You can't have a sole redeemer of the world and then also a co-redeemer of the world. It's contradiction even if you qualify it by stating that the Virgin is not equal to Christ in the act of redemption. She is still redeeming the world alongside Him in Calvary
contra Trent, Florence and Scripture.
Co-operation with a certain act is not the same thing as doing said act. All the graces of redemption flow through the saints and the Church, with the Blessed Virgin on top, but the saints, the Church and the Blessed Virgin are themselves fruits of redemption not causes of it.
Here is Pius XI; The Virgin participated with Jesus Christ in the very painful act of redemption" (D-3370) The Virgin Mary by her mystic union with Christ and His very special grace she likewise became and is piously called a reparatress. "Miserentissimus Redemptor".
In Pope Pius IX’s
ex cathedra Bull
Ineffabilis Deus, in which he defined the dogma of the Immaculate Conception, we read:
"By this divine prophecy [Gen 3:15],
the merciful Redeemer of mankind, Jesus Christ, the only begotten Son of God, was clearly foretold; that His most blessed Mother, the Virgin Mary, was prophetically indicated; and, at the same time, the very enmity of both against the Evil One was significantly expressed. Hence, just as Christ, the Mediator between God and man, assumed human nature, blotted out the handwriting of the decree that stood against us, fastened it triumphantly to the cross, so the most holy Virgin, united with Him by a most intimate and indissoluble bond, was, with Him and through Him, eternally at enmity with the evil Serpent, and most completely triumphed over him … Mary was eternally in complete and absolute opposition to Satan, for with and
through her Son the Redeemer, the Woman was to intimately share in the complete redemptive triumph over Satan.”
The pope emphasizes the Blessed Virgin's unique role, her indissoluble bond with Christ and indicates that she shares in the redemptive triumph of the cross, yet he identifies Christ alone as "the merciful Redeemer of mankind." He continues:
"All are aware with how much diligence this doctrine of the Immaculate Conception of the Mother of God has been handed down, proposed and defended by the most outstanding religious orders, by the more celebrated theological academies, and by very eminent doctors in the sciences of theology. All know, likewise, how eager the bishops have been to profess openly and publicly, even in ecclesiastical assemblies, that Mary, the most holy Mother of God, by virtue of the foreseen merits of Christ,
our Lord and Redeemer, was never subject to original sin, but was completely preserved from the original taint, and hence
she was redeemed in a manner more sublime."
The Blessed Virgin "was redeemed in a manner more sublime." She was not redeemed and preserved from the original taint by her own sufferings, that would be impossible, but by Christ's.
Our Lady's sufferings atoned for sins is blasphemous? How so? Indeed the Church teaches that all our our sufferings borne patiently and for the love of God serve to make reparation not only for our sins but for the conversion of others and the relief of the Poor souls. So to say that those of our Blessed Mother also atoned is totally in conformity with Catholic teaching.
Are you seriously suggesting that the Blessed Virgin's sufferings at Calvary somehow satisfied the justice of God the Father for our sins? Do you realize the monstrosity of such teaching? There's only one God and one savior of the human race, Jesus Christ. Our sufferings can be offered as a reparation for sins due to grace and the redemption won at Calvary by Christ. Yet, we are not all co-redeemers of the world, are we? Without Christ, we could suffer all we want and it wouldn't make a difference. We are redeemed by His blood alone. The belief that Jesus Christ alone is the savior (that's what redeemer means) is the heart of Christianity:
But he was wounded for our transgressions, he was bruised for our iniquities: the chastisement of our peace was upon him; and with his stripes we are healed. (Isaiah 53:5)
By whose stripes are you healed, Michael? Even the Blessed Virgin had to be saved and her heart rejoiced in it.