During the holocaust, there were many disbelieveing people who did not advocate for the nazis behavior. The people ranged from Jews to Germans for those who opposed the nazi lifestyle, and those people did plenty to try to help the people of the concentration camps escape.
The White Rose was one of the most influential anti-nazi groups. They were a large group of intellectuals from the University of Munich who shared their personal beliefs on the nazi party through the occasional vandalization. An actual white rose was the symbol of rebellion.
The Warsaw Ghetto Uprising was a major event that lastest for one month with the nazis winning eventually. The people fought and did what they could to try to escape the nazis that were trying to force them into concentration camps. Most of the people who fought back in the Warsaw Ghetto Uprising were killed.