They are consistently inconsistent.
The whole concept of the "adoration" (to use the catholic concept) of Mary has grown so much since the 3rd/4th century it has gone way beyond her statement in Luke where Mary says, "For behold, from this time on all generations will count me blessed."
There is no clear cut answer on this other than an appeal to Scripture. It is the one source we all agree upon. And none of what is taught about Mary in catholicism is found in Scripture.
The whole concept of the “adoration” (to use the catholic concept) of Mary
If you are going to talk about Catholic concepts, please use the correct terminology.
From the Catechism of the Catholic Church:
ADORATION: The acknowledgment of God as God, Creator and Savior, the Lord and Master of everything that exists. Through worship and prayer, the Church and individual persons give to God the adoration which is the first act of the virtue of religion. The first commandment of the law obliges us to adore God (2096, 2628; cf. 1083).
VENERATION (OF SAINTS): Showing devotion and respect to Mary, the Apostles, and the martyrs, who were viewed as faithful witnesses to faith in Jesus Christ. Later, veneration was given to those who led a life of prayer and self-denial in giving witness to Christ, whose virtues were recognized and publicly proclaimed in their canonization as saints (828). Such veneration is often extended to the relics or remains of those recognized as saints; indeed, to many sacred objects and images. Veneration must be clearly distinguished from adoration and worship, which are due to God alone (1154, 1674, 2132).
Mary as the mother of God is found in Scripture except by those who came along around the 18th and 19th centuries and decided that everyone before them was wrong.