ujm > mdd, are you suggesting that we need to thank Stalin?
USSR murdered Jews – rabbis, businessmen, anyone who was against communists, introduced shmad in Russia, Ukraine. When they started WW2 together with Nazis, they did the same in Poland, Lita, Latvia, Bessorabia killing & arresting both Jews and non-Jews … Maybe Sara Rifka need to read or talk to those who survived (like R Feinstein, Menachem Begin, Mir Yeshiva, etc). A lot of people, including Rabonim, including did not talk publicly about it but their views are known. When they were consulted about activities to support Jews left in Russia, R Teitz, R Feinstein, Lubavicher Rebbe all favored secret activities or private agreements and were afraid of angering NKVD with public actions. As you see, so many people drink bad tea and fall from windows even in our days. Think, how this was probably happened when Stalin/USSR was in full power (Trotsky, for example).