Only the LORD or an Apostle can correctly interpret Revelation for us. My view is there is only one mother of the Messiah, Miriam, who is also Israel, who is also the Church. That unity will never be broken. No one can separate her from Messiah, from Israel, or from the holy catholic apostolic church (not that they won't try).
It is fine that you follow the interpretation of your church, af vet. I have no problem with that.
For me, however, reading the scripture, there is nothing in Revelation 12 that demands that passage be about Mary, except for the “gave birth to” section, and there is a lot remaining that says that it is not Mary.
However, I do appreciate your explanation.