I don’t think these teachings about the Blessed Virgin Mary are blasphemous for they edify God the Father, God the Son and God the Holy Spirit.
Where are you getting the idea of blasphemy? From propaganda against the Catholic Church? From pamplets? From some uneducated preacher of whom we are told to be aware of false prophets?
Please explain where you are getting these errorneous ideas.
The Blessed Virgin Mary always edified her Son and God the Father. Have you ever read the Magnificat? Total prayer of praise.
No they don't. All they do is edify Mary. How great she is, how much she suffered, how she works with God for our redemption, how much she *loves* us.....
A whole section in the CCC dedicated to exalting Mary is NOT edifying God or Jesus. It's lifting her up way beyond measure and what is appropriate for a human being to be elevated to.
It's taking glory and credit for our redemption and salvation away from Jesus.
John 12:32 And I, when I am lifted up from the earth, will draw all people to myself.”
Jesus says NOTHING about lifting up Mary.