I prefer *mother of Jesus* because that’s how God, the Holy Spirit, chose to identify her.
If HE thought it was a better term, I don’t have any doubt He would have used it.
But He didn’t.
It's funny: Today we Cat’licks observe a “feast” of the Apostles Philip and James. An assigned reading from “church documents” is from Tertullian, who seems later to have gone off the rails. And he makes much of the Lord's promise in John's gospel that the Spirit will come and lead the apostles into all truth... therefore the Church is one, etc. etc.
But figuring out what that means ain't easy. Peter seems to have wussed out in Antioch, and while we would hold that the truth of the Trinity finally prevailed, it didn't come like water from a spring. Athanasius (memorial was yesterday!) kept being run out of town!
So, I guess my image of “Magisterial” truth is that it gradually precipitates out of Church conflicts.
And, believe me, I know and have suffered from the excesses of the “Mary cult.” I once wrote something for me “chapter” which was ... get this ... open to the shocking idea that Mary delivered IHS vaginally. /gasp!/ So a few fussy ladies were persistent in their condemnation of radical me.
I just shake my head, y’know?
But, well, if Jesus is God, then “Mother of Jesus” and “Mother of God” seem semantically equivalent to me.
AND, in my experience and alleged mind the phrase is less about Mary and more about the incomprehensible (Lewis would say “appalling”) humility of God.
The MAIN deal, always but especially in these fifty days, is God and his Love. That is where I focus my attention.