Now I am talking with my own past experiences in mind. I understand that you are sad for her that she views you in the way she does. I was there once, too, with both my parents. I tried to explain myself, but soon enough realized that the task was impossible. They were not able to change their view on me without losing the faith they had, and the church community - their tribe. Yes, I read your posts about the tribal shame.
In my case my parents had the choice of either putting the shame on me (actually, it was worse than just shaming, but not more about that) OR take all the same shame on them from the church. They chose to be loyal to the church. Their tribe was more important to them than their daughter. Now, I am not saying that you will necessarily face this, but it is one of the realistic options.