Is it permissible for a father to divorce his three pregnant wives all at once and immediately marry another, while neglecting his children, and do the children have the right to intervene to stop him?

If a father divorces his wives without need, he has committed a wrongdoing, for divorce without need is disliked (makruh), and it might even be forbidden (haram) due to the harm it entails. The son should advise his father and explain the ruling on divorce and its harms gently, without harshness or offense. If the father insists on divorce, his son should leave him to it, yet still honor him and treat him well, without abandonment; because enjoining good and forbidding evil with a parent is different from doing so with others.