First off, I can't imagine my children being that defiant, but I'd like to believe I'd NEVER need to wrestle my daughters to the ground. Depending on the circumstances, I could see me doing it to my son, but there would need to be a TON more context than what we see in this short video. That said, what would I do in those exact circumstances? Walk away and brick the phone with a remote wipe/reset.
It's always easy to judge what we'd all do based on a tiny snippet of time, I'd love to see the raise of hands for the parents on here that are confident they don't have a terrible parenting moment they'd want captured on film.