As a Jew, this contribution is mostly wish fulfillment, but something I see as plausible ITTL.
Commonpedia.org
The Jewish Renaissance
The Jewish Renaissance, also known as the
Eastern Jewish Renaissance, or
The Resurrection (תחיית, t'chiyah) in Hebrew, is a revival of Jewish culture and religion in Eastern bloc and the USSR that began in the late 1970s, with the Cultural Leap and major economic reforms, followed by a small growth in the Jewish population since the late 1990s, reversing a trend of decline that began in the 1930s.
Background
In 1932, Central and Eastern Europe and the Soviet Union were home to the largest Jewish communities in the world, with the biggest being in Poland, with over 3 million Jews. In all of these countries, Jews were disproportionately members of the bourgeois and professional classes.
Despite decades of assimilation, the rise of reactionary fascism, nationalism and the economic hardships of the Great Depression would create an atmosphere of persecution and deprivation for many Jews. The passing of the Nuremberg laws in Nazi Germany would hurt the livelihoods of Germany's Jews. The annexation of Austria and Czechoslovakia in 1938 would extend the Reich's discriminatory policies would extend into these regions. In 1937, Poland's military government would push harsh racial quotas in universities, government professions, and trade unions [1], driving many Polish Jews into poverty. In 1938 and 1939, Romania and Bulgaria would themselves enact anti-Jewish legislation.
Between 1934 and 1940, almost 1 million Jews would [2] emigrate from Europe, mainly to the UASR and Latin American red nations, often aided enthusiastically by the fascist regimes themselves [3].
The Shoah and Post-War Difficulties
The Shoah would devastate European Jewry, with the almost total annihilation of Poland's Jews, and decimation of many other Jewish communities Eastern Europe and the UASR. Many survivors would come home to see property taken over by squatters, and menaced by antisemitic mobs. Some pogroms [4] broke out across territories liberated by Comintern.
While the newly established communist regimes in Eastern Europe were officially opposed to antisemitism, many held an ideological opposition to religious worship. Even ethnically Jewish heads of state like Ana Pauker [5] and Matyas Rakosi [6] were unsympathetic toward the religious aims. The economic policies of the early Red bloc would prove disadvantageous toward many bourgeois Jews trying to rebuild their lives. The horrors of the Second World War and the creation of the Jewish state increased the cultural aspirations of the Soviet Jewry, but these hopes would be dashed by the still repressive Soviet government [7].
The establishment of the state of Palestine, which under the Law of Return allowed Jewish immigration, would trigger a mass exodus of surviving Jewish communities, aided by the pro-Zionist governments of the Eastern bloc [8], except for the Soviet Union initially, which opposed Jewish immigration toward Palestine. In 1954, Molotov surrendered to the demands of Comintern (and allegedly the desires of his wife Polina) [9], and allowed limited Jewish immigration to Palestine (Khrushchev would allow unlimited Jewish immigration in 1959).
Between 1950 and 1970, 1.4 million Jews [10] would emigrate from the Soviet bloc, mainly to Palestine and the UASR. The official Jewish population of Poland fell from a post war high of 250,000 to little over 30,000 [11] by this time, while the Jewish population of the USSR fell by about 1 million, almost half.
Beginnings of the Renaissance
In 1974, various delegates from the Soviet bloc met in the city of Kiev to discuss the growing demands of religious freedom by their respective populations. The Kiev Accords, which were ratified by every nation except Albania [12], assured that religious freedom need not conflict with material and social freedom.
In March 10, 1976, the Polish politburo declared that "private religious celebration is not a threat to the rights of the Polish proletariat", leading to a religious revival. The Jewish community of Poland, officially numbering 30,000, began to rediscover its long buried heritage, but lacked the cultural infrastructure to rebuild. They reached out to the Mir Yeshiva, once the largest yeshiva in Poland before relocating to Jerusalem after the Second World War [13].
Beinush Finkel, the rosh yeshiva (dean) of Jerusalem's Mir Yeshiva, sent his son-in-law and future rosh yeshiva Nosson Finkel to Warsaw. On September 10, 1977 Nosson reopened the Mir yeshiva in Warsaw, a moment that sent shock waves throughout the diaspora, and is the moment that is seen by many as the beginning of the Eastern Jewish Renaissance, as rabbincal training and study returned to former center of the Ashkenazim World. Izthak Halevy, a Palestinian journalist, wrote of a "resurrection of Jewish culture in the European East."
Throughout the 1980s, Jewish communities across the Eastern bloc, leaning on diaspora communities whose descendants immigrated, began to rediscover and rebuild lost cultural institutions. Synagogues and Jewish youth centers began to recover.
The Black Easter Massacre and the Reverse Aliyah
The Black Easter, the first serious act of anti-Semitic violence in Eastern Europe since the end of World War II, was a seminal moment in modern Jewish history. It revealed the sentiment of antisemitism that still persisted throughout the Eastern bloc, as well as the growth of Judaism since the Cultural Leap began.
Despite fears that it would mark the death of Jewish Renaissance, it galvanized both the states to discourage antisemitism and finally provide state support to Jewish cultural life, and brought many closet Jews out of their timidity. While 50,000 Jews did flee the Ukrainian SSR after the attack, they chose to flee to other areas of the Soviet Union instead of Palestine or the UASR.
Throughout 1994 and 1997, the Eastern European states invested heavily in state funded Jewish cultural education, and in campaigns against antisemitism.
By 1998, immigration official noted an unusual statistic. For the first time since the 1930s, more Jews have immigrated to the Soviet bloc then emigrated from it. By 2015, over 200,000 Jews have immigrated from to the Eastern bloc, mainly to the USSR, Poland, and East Germany [14], some of them Jews from the bourgeois Entente, some of them Jews from the UASR and Palestine.
The reversal of a decades-long shift has been credited to the social reforms that have created new opportunities for cultural expression and prosperity, new economic opportunities since economic reform was passed, and state sponsored campaigns against antisemitism launched since Black Easter and funding for Jewish culture, and many of those with partial or hidden Jewish ancestry embracing their long buried faith.
Demographics
Soviet Union
1930: 3.1 million
1939*: 3.2 million
1950: 2.3 million
1980: 1.3 million
1990: 1.2 million
2010: 1.4 million
Poland
1930: 3.3 million
1939: 3.1 million
1950: 250,000
1980: 30,000
1990: 29,000
2010: 35,000
East Germany
1930**: 510,000
1939***: 100,000
1950: 20,000
1980: 15,000
1990: 14,000
2010: 40,000
Hungary:
1930: 430,000
1939: 400,000
1950: 150,000
1980: 60,000
1990: 58,000
2010: 65,000
[1] Well before the Holocaust, Poland's Jews were already being victimized by anti-semitism
[2] According
to this post by Jello, Czechoslovak, German, Austrian, and Polish Jews were able to escape in greater numbers. I calculated based off of OTL census records that about 400,000 German Jews, 300,000 Czechoslovak Jews, 100,000 Austrian Jews, 200,000 Polish Jews, and ten of thousands of Romanian and Hungarian Jews would be able to immigrate.
[3] OTL fascist nations were pushing their Jewish population to emigrate.
[4] The level of antisemitic violence is post-war Poland is the stuff of nightmares.
[5] Ana Pauker OTL was the technical leader of the Romanian communist party, but she victim to Stalin's "anti-cosmopolitan campaign", because of her pro-Zionist policies, her Jewish heritage, and her opposition to Stalin's more lunatic ideas. ITTL, Molotov being in charge and Israel being a Comintern ally means that she can become Romania's leader.
[6] The dude was a Stalinist par excellence. ITTL, I can still imagine him still being a very repressive and controversial figure.
[7] This was more or less Lenin's policy toward Jews: official equality, but no cultural autonomy. Also OTL, the Soviet government did cover up the antisemitic violence committed against Jews, and under Molotov, I don't see this policy changing.
[8] OTL Stalin only supported Israel when he thought they could be a useful ally. Even Red Czechoslovakia sent them weapons in the 1948 war when America didn't. So I imagine Comintern will remain pro-Zionist as Palestine is considered a useful ally.
[9] Unlike Stalin and Nadezhda, Polina and Molotov were very, very happily married. Polina was supportive of a Jewish state in Crimea (which got her sent to a gulag by Stalin) and good friends with Golda Meir, so I can imagine her being a staunch Zionist (and can convince her husband to be supportive as well)
[10] 1,000,000 Soviet Jews, 200,000 Polish Jews, 100,000 Romanian Jews, 70,000 Hungarian Jews, and smaller numbers of Jews from other states
[11] By 1967, that was the lowest Poland's Jewish population got before Wladyslaw Gomulka's "anti-Zionist" campaign (his asshole attempt at distracting Poland's population from its woes). ITTL, that would probably not occur, and thus 30,000 Jews would stay in Poland.
[12] Enver Hoxha remaining a stubborn dinosaur to the end like OTL.
[13] The OTL story of their escape is really interesting.
[14] OTL, many Israelis have moved to Berlin, seeking cheaper rents. It is a reversal that has not gotten any small amount of coverage by the Israeli media.