Complaints, verdicts, judgments, condemnations and recommendations are not enough. Words do have some power. They may be able to influence those who violate rights or those who are unwilling to protect rights. And the language of rights is a tool that victims can use to recognize their predicament, to organize their struggles, to rally supporters and to protect themselves. It helps them to understand that their situation is not their fate; that their suffering is not a necessary contribution to the general welfare or to the course of history. Knowing that you have rights can already change a lot. Protest requires consciousness, and protest can sometimes be effective.
But words sometimes need to be followed by actions. Force and coercion, or an executive power, is often necessary. Law enforcement can require military force, policing, sanctions, interventions etc. The international community, or those who represent this community, need to be able to go against the will of individual states and force them in a certain direction.
The judiciary, according to Montesquieu, does not really have power. It depends on the executive for the execution of its judgments. However, in an international environment, it has always been very difficult to enforce law and judicial judgments. The independence of states, the right to self-determination and national sovereignty have always inhibited international coercion of individual states. These principles sometimes even inhibit effective monitoring. So, if you cannot even look and judge, it is obvious that it is even more difficult to enforce your judgment.
There are global monitoring institutions, but no world executive, no world government, no world police, no strong arm of the international law, and no global monopoly of violence. Perhaps the Security Council could become the world police, but it has to rely on the military force of member states and it has to deal with the veto system. Victims of rights violations are often left in the hands of their butchers.