What is the ruling on supplicating against the father and brother with evil in the event that the daughter is beaten and humiliated by them?

It is difficult to imagine a parent being unjust to their child, as this is often an illusion and whispers [from Satan]. If this is true, then your father is indeed unjust, but this does not nullify his right to dutifulness. Therefore, it is not permissible to supplicate against him or abandon him. Rather, one should supplicate for his guidance, reduce the time spent in his company to avoid discord, and seek the intervention of righteous people to advise the parents.