Really??? That's the ONLY conceivable reason? Is it in the realm of possibility that Mary can be loved, honored and respected without her having the title "Mother of God"? Can you understand that all this discussion and argument isn't about hatred for Mary but a love for Christ and the truth? All I see that this disagreement is causing is contention and hatred FOR fellow Christians. Mary is on the sideline...and I don't think she would like seeing herself being used in such a way.
Since all Christians believe that Jesus is God, and
Since all Christians believe that Mary is the mother of Jesus,
There is no rational basis for objecting to calling Mary “the mother of God.”
Thus, there can only be irrational bases for objecting to calling Mary “the mother of God.”
Mary is the mother of Jesus.
Jesus is a carpenter.
Mary is the mother of a carpenter.
Mary is the mother of Jesus.
Jesus is God.
Mary is the mother of God.
The two syllogisms above are identical in form. They are both valid.
This is another way of saying that refusing to call Mary “the mother of God” is totally irrational—unless one is NOT a Christian.