I don't buy that theory, because Zionism started long before WWII. But I certainly don't disagree that Judaism must have been changed by the Holocaust. Mary Doria Russell said in an interview, "As a post-Holocaust Jew, we have to acknowledge two things: being Jewish can get you killed and God won't save you."
The PLO stated in the early days of the state of Israel that its mission was to "push the Jews into the sea." I don't think that you have to have been through a Holocaust to find that threatening.
Peace.
~ ~ ~ All meetings end in separation All acquisition ends in dispersion All life ends in death - The Buddha