Jus Cogens in Humanitarian Crises: Half a Loaf or Pie in the Sky?

The world has seen many humanitarian crises in the last three decades. Several of them are protracted, having lasted for a decade or more, without an end in sight. Examples include Libya, Syria, Yemen, the Democratic Republic of Congo, Palestine, etc. If one considers that the prohibition of crimes against humanity and the basic rules of international humanitarian law are part of jus cogens, how can we explain that these humanitarian crises, with the associated serious violations, have been ongoing for a long time? Do jus cogens norms exist without corresponding obligations on the part of states or international organizations? Does the position of the International Court of Justice (ICJ) that obligations exist, even if they are non-justiciable for lack of jurisdiction, provide an adequate response when it comes to the implementation of jus cogens norms?