because a) until the last moment the Germans pretended they were'nt all going to be exterminated b) they had no where to go (no countries were accepting refugees or you had to cross an active front) c) People were afraid for their families. and anyway, the very first act of armed resistance in occupied Europe in WW2 was by the Jewish resistance in Belarussia (the Bielski brothers I think). so there!
Magnitude 6.1 quake hits Panama-Colombia border (Reuters)
from the article: Jewish critics who betray the struggle against anti-Semitism