Is Mary really the salvation of the Christian "race?" Truth or Blasphemous Heresy?

How is an orthodox convert to make sense of this?

One of the prayers in my prayer rule ends with the following:

O Blessed Theotokos, for hoping in Thee, let us not perish; through Thee may we be delivered from adversities, for Thou art the salvation of the Christian race.

Campbell, Laurence. Prayer Book (p. 21). Kindle Edition.

Calling Mary the salvation of the Christian race seems to me to be going too far, even stepping over the line of blasphemy. I’m unsure how to square that or understand it in a way that makes sense. When saying my prayers, I would skip over that part and not say it for a long time. But that has bothered me because it’s in the prayer book, and it seems to be a legitimate belief within the church. And the LAST thing I want to have in my new faith is cognitive dissonance, like I experienced in Mormonism, because I know myself well enough to know that these types of things will become like needles in my mind, burrowing down until they become a full-blown crisis.

This has been in the back of my mind for several months. Recently, I saw a YT video by Fr. Josiah that talks about miracles performed by Mary and the Saints on our behalf, and I got an Idea that seems to work for me from a rational perspective, at least to the part of me that used to be Mormon. Let’s go through some of the perspectives, and then I’ll present my ideas, and you can let me know what you think in the comments.

First I think it’s important note: In the Orthodox view, Mary does not save independently of Christ. Salvation remains solely the work of God through Jesus Christ.