Ironically, the original Zionist kibbutzim were trying to recreate a kind of Classical Greek polis. It’s ironic because Judaism (implicitly but not explicitly) and its offshoots, Christianity and Islam (explicitly), are universalizing faiths. I think all modern globalist movements are sourced in Christian notions of the “brotherhood of man,” for example.
Now, ever since the triumph of Christianity in the Mediterranean world, Jews have been reviled and persecuted. Some of those who couldn’t stand it converted, and some tried to assimilate without converting (which never really worked very well, even after Europe secularized). But there were some who chose a third option: they threw themselves body and soul into either forming or joining secular globalist movements that would allow them to finally be accepted as equals: in a Marxist context, for example, exploited Jewish and Christian workers become proletarians in the struggle against evil capitalists - there are no Jews or Christians, just proletarians. This adoption of secular globalism also allows them to embrace the globalist aspects of their otherwise abandoned faith system. I remember well a Jewish communist I knew (a complete atheist and a person who loathed believing Jews and mocked them incessantly and with imagery that could have been lifted from the pages of Mein Kampf) explaining to me the beauty of the Jewish concept of Tikkun Olam.
I think this is why so many diaspora Jews, especially those residing in North America, are leftists. You get to finally be accepted (no more wedgies/pogroms), you get to still fake pretend you’re Jewish to yourself (because you’re keeping the “good” parts of the faith while discarding all the superstitious mumbo jumbo), and you get to save the entire human race from evil!
This theory also explains why so many diaspora Jews hate Israel. Obviously, cultures that were used to beating on Jews don’t like Jews fighting back, but Zionism also really upsets these globalist types because it makes a mockery of their entire existence. Zionism is unapologetically particularist and martial, expressly grounding freedom and citizenship in the concept of a Territory/Soil that citizens value even above their own lives and their own material well-being (the “socialist” part): concepts that the ancient Spartans would have found familiar. But for the globalist, secular Jew, Zionism is a repudiation of everything he stands for, an utter rejection of his worldview, and in all ways that matter, a reminder of his irrelevancy and silliness.