I hope that Flocc doesn't mind:
Judaism in the Anglo-Dutch Empire
History
The old United Provinces was a place where Jews could practise their faith relatively freely without fear of large-scale persecution. With the founding of the Anglo-Dutch Empire, Jews began to spread across the length and breadth of the Empire. By 2006, London, Amsterdam, Singapore, Niew Amsterdam, and Reclife were the main focal points of Jewish life in the Empire. Throughout the course of the 19th and 20th Centuries, Jews steadily trickled out of the ghettos of Austria, Russia, Poland, Hungary, and France into the welcome embrace of the House of Orange-Nassau.
The Present Day
Judaism is not monolithic by any means. Joining the exodus of German Protestants were the originators of the Reform Movement, which liberalized Jewish worship and doctrine. The great Temple of Beth Israel [OTL's Emanu-el], in Niew Amsterdam serves as the focal point for Reform Jews in the Anglo-Dutch Empire.
However, the vast majority of the recent Jewish immigrants into the Empire were Orthodox and Hasidic Jews from theocratic and increasingly war-torn Empire of all the Russias (along with a good smattering from Poland and Hungary). So called "Little Jerusalems" have sprung up the Empire's biggest cities. The Orthodox tend to close themselves to the world of the goyim, while the Reform Jews tend to enthusiastically embrace public life.
All Anglo-Dutch Jews, however, were united in the 1980s and 1990s in denouncing the Russians in their persecution of their Jewish minority. Large protests against the Russian consulates in Singapore, Niew Amsterdam, Amsterdam, and Reclife raised quite a ruckuss, and culminated in the huge rally in front of the Russian Embassy in London in 1990, where huge crowds of Orthodox and Reform Jews joined to repeatedly belt out "Let our people go!"
Life in the Anglo-Dutch Empire: From 1654, when the first Jewish refugees from the Portuagese Inquisition set foot in Niew Amsterdam, Jews have been amongst the Empire's greatest lawyers, businessmen, speculators, and stock traders. The profession of the Jews tends to dictate whom they vote for. The businessmen, traders, and speculators are generally Conservative votes. However, the lawyers tend to vote Liberal, leading one Conservative Jewish MP, the Right Honourable Moshe Katsev (C-Bradford), to quip in 2003 "Oh Lord, smight these foul lawyers and landlords, they are a blighteth on the land!" [In the interest of fairness, Mr. Katsev is well known for his black Anglo-Dutch-Yiddish humor].
Jews also tend to dominate the comedic scenes in the big cities. The movies of Zuid Afrikan flimaker Abba Elias Marius van der Mewe play to packed houses from Singapore to Mexico City (which isn't a big surprise-after all, Zuid Afrika's moive industry was founded almost entirely by Jewish immigrants from Poland). Comedian Ali van Doyborg (real name Herald Cuttler Rubenstein) tours the Empire in style and in an eccentric flamboyance that liberally mixes Yiddish, Anglo-Dutch, and Asian styles with great disdain for what the Conservative matrons and Burghers of Amsterdam might think.
The Jews of the Vrijander Republic: There were never many Jews in Vandamiensland (historians estimate that by 1904, there were only around 40,000 Jews on the entire continent, mostly settled in Zuid Geldre). After the founding of the Vrijander Republic, virtually the entire Jewish community, not wanting to know what would lie in store for them under a Calvanist theocracy, left en masse for Singapore, forming the basis for that city's steadily growing Jewish community. The few who decided to stay were subject to a number of restrictions. By the 1910s, the few who had stayed were gone.
Broach the subject of the Vrijanders to any Anglo-Dutch Jew, and their reaction will give you a first class education in Yiddish oaths.