The problem is that you can't allow certain things to be done to you, and it doesn't matter whether there is no law or if the person in question has immunity, a

The problem is that you can't allow certain things to be done to you, and it doesn't matter whether there is no law or if the person in question has immunity, and this means that you must do something about certain sufficient harm to you or collectively to groups in which you are part, whether that harm was inflected legally or not. But the purpose of courts is to substitute for private vengeance. If they are not willing to do so, this doesn't mean that you have a right to just roll over and die. If a court says they will not hear you because the person who killed or severely harmed somebody has immunity, or because it has made itself some rule that it feels prevents it from hearing your complaint, then it has made itself irrelevant.