If he's still sleeping with his baby mother should I tell my family to delete him from their Facebook page?

My now ex that I'm done with is sleeping with his baby's mother and I'm trying to convince my family to delete him off of their pages. But they won't do it. They said just because we're not together anymore, they don't have to delete him. I feel that they're disrespecting me.. that's why I barely get along with any of them now. What should I do? He's stalking me ATP, Because he likes my pictures on Facebook from my mother's page. He begs me to come back ; yet he won't stop sleeping with his baby's mother. Plus, he talks badly about me to her. She posted the recording of him saying , "I don't talk to that b**** " he also mentioned the face that we were never together to this SAME woman from 2023. Smh. 🥱🚮I saw her on Facebook. All she talks about is how much she doesn't like him and that she's in love with his cousin. 🙄I'm sick of all of them. I'm moving to another state soon.

If he's still sleeping with his baby mother should I tell my family to delete him from their Facebook page?
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