They're "Cooked"

In the metaphor of "the frog in boiling water" used by Daniel Quinn, Kristallnacht represents when the frog is being boiled to death without knowing. After this turning point, the Jews (frog) can no longer escape the country (pot) and they essentially have no future. Although they were being killed, the Jews didn't notice, therefore they didn't do anything to stop the Nazis from doing so. They couldn't predict their death because to distract them, Hitler and the Nazis would take small steps, from a to b to c to d to e. The Jews would only compare b to a, and d to c, rather than comparing the drastic change from a to e. This led them to believe that all of these small changes weren't so bad, until the Kristallnacht happened. This was like a slap in the face, and they now realized there was no escaping this torture, and there was nothing they could do about it. The name Kristallnacht is euphemistic and indicates that this is a boiling point for Jewish people in Germany because the Germans have been outsmarting them for so long, without them even knowing. A culmination of all the times they have been outsmarted leads to the loss of hope for Jews. There is now almost no way to escape the country for them, which means they will either die, live alone in hiding for the rest of their lives, or go to a concentration camp and die there. This was a sad realization for the Jews in Germany, and they now were being boiled in a pot that they couldn't get out of.