Narcissistic birth mother left in shock

I hope everyone will enjoy this story as it's about me telling my birth mother in a message after my legal marriage this year that she is NOT allowed to meet my daughter. First I outed her and her husband for what they did to me and their younger adult son and told her they're not allowed to meet my child.she thought I'd get over it, so she asked me about my child 6 times. I told her for the second time don't call my kid your grandchild because she's NOT. This woman and her husband were my primary abusers until I was pregnant with my first baby at 24. She was also financially using me and threatening me to give her money, I told her that stopped too because due to my legal marriage this year , my benefits had stopped and I am now legally dependent on my husband. So now she has no money and no more grandchildren except the 7 grandkids she does have access too. She is currently blocked and I outed her and her husband on YouTube and reddit for being child a b u s e r s.