Judiams is a religion FOR the jewish people. In order to be considered a jew, your mother has to be jewish. There are some converts to Judaism, but they are not many. They keep track of their lineage via the maternal blood line. https://twitter.com/BaKirschenman/status/1050063162513358849 …
Besides genetical uniqueness it's a circumcision that Jews have all in common and a trauma of being circumcised might be a psichological vortex that alienate them to every other people so much. Those horrible talmudic Machiavellian 'wisdom' comes only afterwards...