Domestic violence is a matter of principle and absolutely cannot be tolerated! If he doesn't repent, divorce him, otherwise the woman will continue to be hurt and the marriage cannot be maintained by the woman alone.
The woman can take the children back to her parents' home first, and then file for divorce. If you are beaten again, you must call the police decisively and have your injuries examined. These are all evidence. You must protect your child well and don't let the man take it away, otherwise you will be in trouble.
Our happiness is in our own hands and is the result of our own choices, not given by others. Be responsible for your own happiness! Be brave enough to say no to unbearable living conditions! What hurts the most is not the tragic experiences, but the "tacit consent" of those experiences to oneself.