> no Polish Jew would have survived the Nazis with this kind of information theft.
I'm not sure this is a good is a good example. I believe a majority of Polish Jewish survivors were those who fled into parts of soviet union not occupied by nazis(some were sent to gulags but this was still much better chance to survive then those who stayed in Poland). Another large portion were in concentration camps and hadn't been killed yet. And I believe 60,000 or less are estimated to have hid in Poland through the war. It's unlikely many remained in their pre war identities and simply concealed their Jewishness and managed to survive.
I'm not sure this is a good is a good example. I believe a majority of Polish Jewish survivors were those who fled into parts of soviet union not occupied by nazis(some were sent to gulags but this was still much better chance to survive then those who stayed in Poland). Another large portion were in concentration camps and hadn't been killed yet. And I believe 60,000 or less are estimated to have hid in Poland through the war. It's unlikely many remained in their pre war identities and simply concealed their Jewishness and managed to survive.