The anti-Semitism crises exploding in the British Labour Party and threatening to erupt in the US Democratic Party have complex sources in both the elites and the middle class. These include the logic of socialism, which opposes Jewish difference; rejection of the nation-state, which Jews still embrace; and conventional nineteenth-century beliefs in Jewish greed and conspiracies. Post-colonial guilt has also led to multiculturalism and societal self-mortification through Muslim mass immigration, which has enormously exacerbated anti-Semitism and terrorism. The trends in Europe and Britain portend negative changes in the US for Jews and Israel.