You don't pray to her? (Hail Mary full of grace...)
She isn't considered the 'Queen of heaven'?
We do, and She is.
We pray that she will intercede with Her Son to grant our petition. No suggestion that She is God.
They don't consider Jesus sufficient. They feel they need another heavenly intercessor.
Queen of Heaven and Earth. The Queen Mother, so to speak.
Luke 1:26-28In the sixth month, the angel Gabriel was sent from God to a town of Galilee called Nazareth, to a virgin betrothed to a man named Joseph, of the house of David, and the virgin's name was Mary. And coming to her, he said, "Hail, full of grace! The Lord is with you."
She isn't considered the 'Queen of heaven'?
Revelation 12:1A great and wondrous sign appeared in heaven: a woman clothed with the sun, with the moon under her feet and a crown of twelve stars on her head.
FWIW
She is also considered a co-mediator and even by the more radical Catholic elements a co-redeemer.
English is quite slippery. We've got a problem here because of the imprecise use of words (or the use of imprecise words.)
"Worship" now is used to mean that submission and reverence due to God alone; but at the time of the Protestant Reformation it meant, simply, submission and reverence (cf. Thomas Cranmer's 16th century Anglican wedding rite, which contains the lovely words between the bride and groom: "with my body I thee worship.")
Similarly "adore," which is sometimes used as synonym for worship (Balimore Catechism, Q. 1143: "The First Commandment commands us to adore God alone...") but is often loosely used to mean "like a whole bunch" ("I adore chocolate cheesecake.")
Tha's why serious Catholics like to use dead languages like Latin and Greek. They don't slip around so much.
Greek. "Dulia." Honor. We give dulia to our fathers and mothers, and to the angels and saints.
"Hyperdulia." High honor. We give hyperdulia to Mary because she is the bride of the Spirit, the mother of the Son, thus the point of intimate contact between God and the human race, by whom we were given Christ in the flesh.
"Latria." Supreme honor. We give latria to God because he is the Supreme Being, the All-Good and the source of all goodness. Everything that is good is derivative from Him.
http://www.truecatholic.org/pope/honor.htm
Protestant brethren: please intercede to God for me, a sinner.
(There! Yes! I prayed to you!)
Your peaceable sister,
Mrs. Don-o