By the way, your daughter KNOWS how she is messing up your relationship with your parents. That is on purpose. She is not a nice lady right now. She wants to hurt you and have them on her side and they oblige her. Do you really think she doesn't know or really cares? Your letter confirms what she knows in my opinion. I ache for you.
In my opinion, they are all doing wrong to you. Sounds to me as if you were always the one to get picked on in your family. You don't deserve it. Don't allow it by getting involved that way.