There are different degrees that RC's "adore" Mary. I'm sure there are as many different degrees as there are Catholics. I'd say De Montfort is on the higher end of the spectrum.
25. God the Holy Spirit entrusted his wondrous gifts to Mary, his faithful spouse, and chose her as the dispenser of all he possesses, so that she distributes all his gifts and graces to whom she wills, as much as she wills, how she wills and when she wills. No heavenly gift is given to men which does not pass through her virginal hands. Such indeed is the will of God, who has decreed that we should have all things through Mary, so that, making herself poor and lowly,, and hiding herself in the depths of nothingness during her whole life, she might be enriched, exalted and honoured by almighty God. Such are the views of the Church and the early Fathers.
This is one of the many reasons Christians reject roman catholic teaching on Mary.
This is nowhere supported in Scripture.