Were Jews slaughtering Germans at music Festivals on July 3, 1940, and taking hostages?
In their way and in their circumstances, they did try.
The Warsaw Ghetto Uprising began on April 19, 1943, and ended on May 16, 1943. It was a heroic act of resistance by Jewish residents of the Warsaw Ghetto against Nazi German forces during World War II. The uprising started when the ghetto refused to surrender to SS forces, who were then ordered to destroy the ghetto block by block. A total of 13,000 Jews were killed, about half of them burnt alive or suffocated. Stroop reported 110 German casualties, including 17 killed.
When this armed rebellion became known, it received an ovation from Jews around the world --- as a sign of power and hope.
A little history ---
The Nazis rounded up the Jews of Poland and held them in a small area of Warsaw, building a barricade around the perimeter to prevent them leaving.
The Nazis deprived the ghetto inhabitants of food and essential supplies.
The Nazis reduced the average calorie intake of the Jewish inhabitants of the ghetto to 241 calories per day.
The Nazis restricted public utilities such as water and electricity.
The Nazis restricted the inhabitants from receiving adequate health care.
The Jewish inhabitants through the ZZB and the ZOB areas resisted the oppression by the Nazis --- but their rebellion was quickly crushed without mercy for who may have been in the way.
The Nazis destroyed the structure of the ghetto leveling it to the ground to rout the resistance to their oppression.
It was after the Jews in the ghetto had been killed or moved that the world stood up.