He was in their lives when you were with him. YOU WERE WITH HIM. So were the kids. You did everything for them? Maybe he is old fashioned and believed that women primarily raised the children -- were you working outside of the home? Was he? There are many reasons. You keep making accusations and it makes you look bitter and vengeful. it can easily be spun that you are the one who is manipulating the situation. You claim all this stuff and yet the police did nothing. Threats are NOT civil issues. They are criminal. So again, very little evidence. Did dad consent to the protection order? Was there a full trial?
Again, how many times have you informed dad of the counseling appointments? How many times has the therapist included dad in the therapy? How many times has the therapist talked to dad?