No. Mary is called the mother of God, because she is. the mother of God.
"It robs God of a portion of glory and adoration HE ALONE deserves. "
No. It takes away nothing from God, in fact it was His plan.
"It diminishes God more toward the level of Mary HIS MOTHER! SHEESH! So obviously. "
What's wrong with having a mother? Do you thinks folks are diminished, because they had a mother?
"And, it must, MUST grieve Mary in Heaven sorely.
I'm sure she understands, and so does her son.
"It robs God of a portion of glory and adoration HE ALONE deserves. "
"It diminishes God more toward the level of Mary HIS MOTHER! SHEESH! So obviously. "
Those are just sociolinguistic/psycholinguistic facts given the language and usage of that term.