Zahavasdad, wrong! Ye, the Jews needed incomes, but going to the US meant otd and no olam habah. Needing incomes does not matir aveiros! Sending over some Gedolim would not have helped — there were tremendous nisyoynons with keeping Shabbos. Also,some people just wanted to go off the derech.
The ta’anah about the Holocaust is preposterous. Nobody could have known what was going to happen untill it was to late.