Agreed. 1Timothy chapter 1 v.12: “This is a faithful saying and worthy of all acceptation that CHRIST JESUS came into the world to save sinners... chapter 2 v.5: “For there is ONE mediator between God and men, the MAN CHRIST JESUS.”
I would never minimize the role of Mary. HOWEVER, without the finished work on the cross and resurrection of her son even Mary had no hope of ever being in Heaven.
Your lack of Catholic theology seems evident here.
It is evident that some Catholics are ignorant of the meaning of worship in the Bible. The word that gets translated into the English word “worship” is the word “shachah” which means quite simply...
“to bow down, prostrate oneself as before a superior in homage.”
Catholics do indeed do that physically and spiritually to Mary and to man-made images of Mary.
You will get all kinds of word dances to attempt to appease their mind that they aren’t in violation of Scripture, and they will support that with writtings that came after Scripture, but you are wise to adhere to Scripture.