Final answer:
The provided information does not specify which person, among the options given, was indignant about the treatment of Jews during the time of Nazi Germany and the Holocaust. While historical context about antisemitism and the atrocities committed against Jews is provided, there is no mention of Jacek, Henke, Gerhardt, or Krueger to identify who the question is referring to.
Step-by-step explanation:
The character in question who was indignant about how the Jews were treated and who openly expressed these views is not specified in the provided historical context. However, from the context given, it is clear that whoever this person was, they abhorred the antisemitism and persecution that Jews faced during the era of the Holocaust and Nazi Germany. These excerpts describe the widespread anti-Semitism and brutality against Jews, including the atrocities of Kristallnacht and the systemic discrimination that led to the Holocaust—a genocidal campaign that resulted in the murder of six million European Jews. Understanding the historical context is crucial, but without specific reference to Jacek, Henke, Gerhardt, or Krueger in the information, it is not possible to accurately identify which of these individuals is the one described in the question.