Anon1moUs, what you are saying is outrageous! Jews in Eastern Europe were going OTD en masse before the WWII.Yes, in Poland and Lithuania, in particular. Hence, the over 90% death toll there. In Russia, there was a gzeras shmad, and in Hungary there was less OTD. Hence, the bigger survival rate. It is important to know history.
It is a beferushe Gemora(Yevamos 63A) that HaShem brings tragedy upon the Umos to scare Yidden. Ve’hem einam neki’im — she esh lahem aveiros, ve’gam hem sirvu lekabel es HaTorah.