It would be better parenting if you didn’t smash the phone, tell them you’re the boss, and that they should fuck off. I am sorry but if it’s still confusing to you after repeating the same thing three times, along with everyone else saying similar things, then maybe you can start to understand why so many of your comments are flagged dead now. Nobody really wants to have a multi-day conversation with someone who isn’t listening, cross-posts their drama in multiple posts, puts words in others mouths, and generally behaves like an internet addicted teenager themselves.