Ask her if she will read a book for you that will help her, from a Protestant Fundie perspective to understand some of the mis information she has been lead to believe.
If she will, buy her “Born Fundamentalist, Born Again Catholic” by David Curre.
And pray for her My mom is Southern Baptist and has been all her life. During my journey home I shared a lot of information with her. She was not very open at first. I do not believe she was ever like many of her friend who believe us to be completely wrong, but was “concerned” due to 60 years of misinformation.
One of the books that helped her a lot was David’s book I list above. She said, “because I love you, I’ll read it” She did and made marks throughout the books, looked up verses in her Bible and stuff on the Internet. I’m sure your mother is saying what she is to you out of some sense of love herself. She has been given bad information so long she truly believes it and wants her Daughter to find what she considers “salvation.” I firmly believe that was the hold back on my mom at the beginning as well.
That was over a year ago, while she has not yet started RCIA, she often attends Mass with us and will probably start this fall if all goes well. When I explained to her the Biblical significance of different parts of the Mass, it made it much more interesting for her and much more meaningful. She attended the Easter Vigil for us this year and of course we read more of the Bible at that service than most Protestants will hear in 6 months.
I already find her arguing with the Baptist upstairs often in regards to the Church. I’ve told her if she can argue the Truth of the Catholic Church, she might as well join. Her only hold back is our devotion to the Blessed Mother. However reading Scott Hahn’s Hail Holy Queen helped on that one as well.
Like me, certain things never made sense in Protestant Theology for her I believe. She is not a Biblical Scholar like my father was, I believe if he were still alive they would have both become Catholic when we did.
You are in my prayers!