Just as the Trinity doctrine is a man-made doctrine, “Mother of God” is also a man-made title conferred on Mary by the Council of Ephesus in 431. In my opinion, it is not proper to call Mary “Mother of God”.
God created the heavens and the earth. It boggles the mind that people could even have suggested that God have a mother. It boggles the mind further that Catholics still believe so.
If you ever attended a Catholic Mass, you would hear the priest say during the Eucharistic Prayer to God:
… Have mercy on us all, we pray, that with the Blessed Virgin Mary, Mother of God, with the blessed Apostles, and all the Saints who have pleased You throughout the ages, we may merit to be coheirs to eternal life, and may praise and glorify You through Your Son, Jesus Christ.
Catholics have been brainwashed through the centuries. They meekly and passively accept what the Catholic Church teaches, without ever using their God-given intellect to think things through. No wonder they don’t find it nonsensical to hear the title “Mother of God” in the Eucharistic Prayer.
Mary is Jesus’ mother, she has a special place in Heaven, but she is not the Mother of God. Mary set us a shining example: she showed us what it means to do the will of God. Mary deserves our reverence, but she should never be called “Mother of God”.