Where in the bible does it say that Mary is the mother of the church?
There are over 62,000 translation errors in the KJV of the Holy Bible. Do you really want to get in a dispute?
Christians everywhere should be looking at what binds them; we have to protect ourselves from Islam and atheists Hell bent on destroying our Western Civilization.
The fact we Roman Catholics do not shy away from exposing the apostates within our Church should encourage Protestants to examine their own apostates.
It does not. But as the earthly mother of The Savior it is not inappropriate that she be referred to as such.