The "enlightened" ones like to point to the Bilgorajer Rov's parting droshoh in 1944 as proof that the Tzaddikim at that time had no idea what was coming. Even as late as Spring 1944. That the secular take issue with that is a given. Even the Belzers have a problem with it... See what the Lubavitcher Rav Oberlander says about that speech in the caption.
אשרי חלקו.
אשרי חלקו.