According to Wiesel, prisoners of concentration camps did believe that leaders in other countries were indifferent to their suffering. In his speech, Wiesel provides several pieces of evidence to support this conclusion.
First, Wiesel notes that the prisoners were often isolated from the outside world and had little access to information about what was happening beyond the camp walls. As a result, they had no way of knowing whether their plight was being noticed or addressed by leaders in other countries. This lack of information and communication contributed to a sense of isolation and abandonment among the prisoners.
Second, Wiesel describes how the prisoners often had to rely on their own resources and resilience to survive the harsh conditions of the camp, as they received little or no help or support from the outside world. This further contributed to a sense of isolation and the belief that they had been abandoned by the rest of the world.
Finally, Wiesel describes how the prisoners were subjected to a variety of atrocities and cruelties at the hands of their captors, which further compounded their suffering and feelings of despair. In the face of such atrocities, the prisoners may have felt that their suffering was being ignored or dismissed by leaders in other countries, as they received no help or support in their struggle to survive.