What is an example of an ontological question one could ask after reading the book Night by Elie Wiesel, and how would Wiesel answer it?

Many ontological questions arise after reading Night by Elie Wiesel. For example, one question might be, "Why do evil and suffering exist?" In Night, Wiesel loses his faith in God because of the evil and suffering he witnesses. He sees man's inhumanity and wonders why God does not interfere, and when God seems absent to him, he gives up his belief. I think today, Wiesel would say that evil and suffering exist because of human beings--that there are some people who have allowed fear to take over their lives and the only way they can deal with it is to hurt others. Wiesel has made it his life mission to speak out against evil in order to prevent another horrible even like the Holocaust. Sadly, genocides have continued to occur across the world in spite of Elie Wiesel and others like him. He speaks out against persecution of all peoples and works toward peace and justice because he witnessed the absolute worst of humanity during his time in the ghettos and in concentration camps.