mrpathetic, you accused her of marrying a heretic, which is patently false as the OP wasn’t Catholic when she married. I think you owe her an apology for that remark.
As for the rest of your post, take a step back and ask yourself if you are speaking the truth in love. I don’t think anyone here thinks the OP should not raise her daughter in the CC, but she is trying to juggle her spiritual obligations with saving her marriage. It’s not an easy thing to do, and I don’t think acrimonious and judgemental posts will give her the courage and endurance she’ll need to navigate this difficult situation.
If my previous posts were lacking in Christian charity, I am sorry, and I humbly apologize.
I actually sympathize more with the OP than you realize.
I too live with a spouse who is outside the Catholic faith. And I too am struggling to save my marriage. I have had to make numerous compromises, in order to live in this situation. I have turned over control of my family and household to my wife, and she essentially makes all the decisions for the family. My wife effectively calls all the shots in our family, except really in one area - matters of faith. (This is due, in large part, to the fact that she has abandoned the Faith.)
The one thing that I simply will not relinquish control of, is the spiritual upbringing of my children. I will not let my wife raise them as heretics, pure and simple. On that point, I simply will not compromise. Nor should the OP.
I will raise my children to believe what I believe, and practice the faith that I practice. My daughter is an adult, and she is free to do as she wishes. But my son is a minor, and so long as he lives in my home, he will worship as I worship - bottom line. **I will not take gambles with my children’s souls. Nor should the OP. **
I can think of few circumstances that would cause me to show my wife the door. But if she were to try to turn my son away from the Catholic faith - that just might be it. I wouldn’t divorce or re-marry - but I would take my son and leave. And I wouldn’t look back.
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Look, I have lived in this circumstance for many, many years. I know the OP has only faced this for about a year. I can say from experience that the journey isn’t going to get any easier. The struggle for your children’s souls will not get any easier or simpler , OP, so be ready for the fight of a lifetime.
So ultimately, she may need to make a choice - her faith in Christ, and His Universal Church, or her husband. I can’t make this call for her - but I have made mine. I put my faith in Christ, and his Church, above all else. And that is what guides my decisions. And this includes how I evangelize my children.