AITA for not allowing my mom alone around my children after she posted my son going potty on tiktok

My mom knows I don't want my children on tiktok and this time she has crossed the line for the last time. My 3 year old is potty training and she posted a video of him naked going potty. On tiktok. This is the THIRD time she's posted my child in a situation where they have no clothes on, on tiktok and I've had to yell at her to delete it. The video had so many saves and we ALL know the kind of people who save videos of children with no clothes on. I told her since she can't listen to me and respect my boundaries she can't be around the kids alone anymore. She says I'm overreacting and I can't keep my kids in a bubble. Not posting my underage children on tiktok let alone NAKED isn't keeping them in a bubble. She had her chance and kept crossing my boundaries and now I don't want her alone with them anymore.