Sam2:- What happened to Dino d’Malchuso Dino?
Any woman denying visitation to a father is in violation of Dino d’Malchuso Dino, as is anyone who physically hits or beats up anyone else.
According to the saintly Rav Wolbe ZRKLLH’H it nowadays is even Ossur to hit a child for Chinuch, so Kal vChomer that it is Ossur to hit an adult over 22 [the oldest age a parent was allowed to hit a child in bygone era].