>>who’s dissing her?<<
You equated Marianism to paganism. That would be you.
Your misunderstanding of the relationship between Jesus’ mother Mary and humans is a factor your ignorance, not her divinity.
Then I contend you are dissing God Himself by worshipping a human being, praying to her etc.
Jesus said ‘I am the way the truth and the life, no one comes to the Father BUT BY ME’. (not Mary)
The veil was torn at Christ’s crucifixion wherein we no longer needed a human high priest as Jesus Christ became our High Priest.