Even if you didn’t consider your first point, the similarities to pagan religions, which I was not really aware of, so much of the teaching about Mary can be shown to be erroneous with Scripture, right out of the gospels.
The other issue IS the competition in time that God gets from Mary.
Every minute you give attention to her is one minute you are robbing God of.
Considering that we only have so much time in one day, why would you want to spend your time of devotion and prayer on another human being instead of God Himself. Why do that on someone who can’t do anything for you anyway, in direct disobedience to Christ’s command to pray to the Father, in the Lord’s prayer.
CERTAINLY I fiercely agree! LOL. SIGH.
If not, then all this harping on "in direct disobedience to Christ’s command to pray to the Father, in the Lord’s prayer," is tendentious nonsense.
And if that's all the praying you then you are ignoring the advice to make prayers and supplications and give thanks for all men.
And the reason I pose this is as a "meta-comment" on the notion that, "so much of the teaching about Mary can be shown to be erroneous with Scripture, right out of the gospels."
The short way of saying it is that I am not going to except any alleged argument from someone who on Monday, Wednesdays, and Fridays says we should only pray the Lord's Prayer, and on Tuesdays, Thursdays, and Saturdays says we should do what St. Paul says, and then on Sunday talks about proving stuff from Scripture.
One thing I've learned here on FR is that Scripture is an ink-blot without an authoritative hermeneutic. And what I mean by ink-blot is that, without an authoritative hermeneutic, people find it in what they put in it.