This is just my theory: But it appears that new anti Marian teachings from the Evangelicals partially spawned when she started appearing on Earth.<quoted text>
I'm sure Mary in her day lead some to Jesus just like we today are called to lead others to Jesus, but all of us are merely servants doing our duty nothing more.
We love and honor Mary being jealous of her would take away from our worship to God alone.
It seems the Born Agains scrambled in a rabid frenzy to squash any possibility that it just might be Our Lords Mother, drawing people to her Son.
The Miracle at Lourdes, France was especially troublesome for the Evangelicals. Here you had an uneducated 14 yr old girl, Bernadette Soubirous, who claimed 'a lady' appeared to her and told her where a spring of fresh water was, underneath the ground at the grotto. When the locals dug, they indeed found a spring. People were cured of blindness and all sorts of conditions as a result of this gift from God, told to us by Mary.
Obviously, for anti Catholics like yourselves, this was a major problem. People started trashing the Marian Doctrines; claiming it was really Satan blah blah.
They snubbed their noses at the Mother of Our Lord, just to distance themselves from the Catholic Church. They could not admit truth and chose to be ignorant.