Despite numbering barely 20 million people worldwide, the Jewish diaspora is seen as monied and influential in the halls of Western power, especially in Washington. US President Joe Biden’s support for Israel could not be questioned labelling the actions of Hamas a “barbarism that is as consequential as the Holocaust”. The Palestinian diaspora extends far beyond those of Palestinian heritage to incorporate the bulk of the world’s two billion Muslims, known as the umma. Hamas has correctly calculated on a bloody Gaza invasion to spark Muslim sensitivities. Governments are cracking down on free speech out of a palpable fear of...