The Catholic Mary is an invention of the Catholic Church as shown below. Here is the doctrine of Mary as presented in the Catechism of the Catholic Church. And none of it is based on actual biblical passages. Simply a reinterpretation of what is in the Bible. There is not a single verse in Scripture which tells Christians to practice devotion to Mary.
Immaculate Conception: "preserved immune from all stain of original sin" (FALSE)
491 Through the centuries the Church has become ever more aware that Mary, "full of grace" through God,134 was redeemed from the moment of her conception. That is what the dogma of the Immaculate Conception confesses, as Pope Pius IX proclaimed in 1854: The most Blessed Virgin Mary was, from the first moment of her conception, by a singular grace and privilege of almighty God and by virtue of the merits of Jesus Christ, Saviour of the human race,
preserved immune from all stain of original sin.135 [ Pius IX, Ineffabilis Deus (1854): DS 2803]
493 The Fathers of the Eastern tradition call the Mother of God "the All-Holy" (Panagia), and celebrate her as
"free from any stain of sin, as though fashioned by the Holy Spirit and formed as a new creature".138 By the grace of God Mary remained free of every personal sin her whole life long. "Let it be done to me according to your word. . ."
Perpetual Virginity (FALSE)
499 The deepening of faith in the virginal motherhood led the Church to confess Mary's real and perpetual virginity even in the act of giving birth to the Son of God made man.154 In fact, Christ's birth "did not diminish his mother's virginal integrity but sanctified it."155 and
so the liturgy of the Church celebrates Mary as Aeiparthenos, the "Ever-virgin".156
500 Against this doctrine the objection is sometimes raised that the Bible mentions brothers and sisters of Jesus.157 The Church has always understood these passages as not referring to other children of the Virgin Mary. In fact James and Joseph, "brothers of Jesus", are the sons of another Mary, a disciple of Christ, whom St. Matthew significantly calls "the other Mary".158 They are close relations of Jesus, according to an Old Testament expression.159
Mary's participation in Christ's finished work of redemption (FALSE)
964 Mary's role in the Church is inseparable from her union with Christ and flows directly from it.
"This union of the mother with the Son in the work of salvation is made manifest from the time of Christ's virginal conception up to his death";502 it is made manifest above all at the hour of his Passion: Thus the Blessed Virgin advanced in her pilgrimage of faith, and faithfully persevered in her union with her Son unto the cross. There she stood, in keeping with the divine plan, enduring with her only begotten Son the intensity of his suffering, joining herself with his sacrifice in her mother's heart, and lovingly consenting to the immolation of this victim, born of her: to be given, by the same Christ Jesus dying on the cross, as a mother to his disciple, with these words: "Woman, behold your son."503
Assumption and Exaltation of Mary (FALSE)
966 "Finally the Immaculate Virgin, preserved free from all stain of original sin, when the course of her earthly life was finished, was
taken up body and soul into heavenly glory, and exalted by the Lord as Queen over all things, so that she might be the more fully conformed to her Son, the Lord of lords and conqueror of sin and death."506 The Assumption of the Blessed Virgin is a singular participation in her Son's Resurrection and an anticipation of the resurrection of other Christians:
Mary's prayers deliver souls from death (FALSE)
In giving birth you kept your virginity; in your Dormition you did not leave the world, O Mother of God, but were joined to the source of Life.
You conceived the living God and, by your prayers, will deliver our souls from death.507
Mary as Mother of the Church and Mediatrix (FALSE)
968 Her role in relation to the Church and to all humanity goes still further. "In a wholly singular way she cooperated by her obedience, faith, hope, and burning charity in the Savior's work of restoring supernatural life to souls.
For this reason she is a mother to us in the order of grace."509
969 "This motherhood of Mary in the order of grace continues uninterruptedly from the consent which she loyally gave at the Annunciation and which she sustained without wavering beneath the cross, until the eternal fulfilment of all the elect. Taken up to heaven she did not lay aside this saving office but by her manifold intercession continues to bring us the gifts of eternal salvation ....
Therefore the Blessed Virgin is invoked in the Church under the titles of Advocate, Helper, Benefactress, and Mediatrix."510
Devotion to Mary (FALSE)
971 "All generations will call me blessed": "
The Church's devotion to the Blessed Virgin is intrinsic to Christian worship."513 The Church rightly honors "the Blessed Virgin with special devotion. From the most ancient times the Blessed Virgin has been honored with the title of 'Mother of God,' to whose protection the faithful fly in all their dangers and needs.... This very special devotion ... differs essentially from the adoration which is given to the incarnate Word and equally to the Father and the Holy Spirit, and greatly fosters this adoration."514
The liturgical feasts dedicated to the Mother of God and Marian prayer, such as the rosary, an "epitome of the whole Gospel," express this devotion to the Virgin Mary.515