Ah here it is:

... the Knesset, unanimously adopted the Law of Return in 1950. While guaranteeing all Jews [sic] the right or immigrate to Israel and receive immediate citizenship there, it deliberately avoided defining Jewish identity by any religious measure. Secularists dominated both of Israel's major political parties, the rightest Herut as much as the leftist Mapam, and for both, the law fulfilled the Zionist promise of homeland and refuge from a gentile world that had just finished demonstrating its hatred in the Holocaust.

Yet conflicts underlay the law, too, because the Zionist tradition of conflating religious authority and civil affairs. Decades before... [inane pedantic detail] ... It did not, of course, and under the pressure of intermarriage and conversion in the Diaspora [sic], the inherent contradictions of the Israeli system exploded. A series of cases forced the Israeli Supreme Court to begin answering the question the Law of Return had studiously avoided: Who exactly is a Jew? ... [more inane pedantic detail of specific legal cases]...

The Knesset responded with an awkward, troublesome, compromise, amending the Law of Return to be simultaneously more lenient and more strict. For purposes of immigration, anyone with a Jewish grandparent would receive immediate citizenship; but for purposes of national registration, Jewish identity was defined by matrilineal decent or "legitimate" conversion. To add to the confusion, the amendment avoided specifying the criteria for a legitimate conversion. No longer was the question of status simply, "Who is a Jew?" Now it was also"Who is a convert?" and "Who is a rabbi?" In Israel, a homogeneous country with an overwhelmingly Orthodox rabbinate, these fine points of debate mattered little. In America, with it's boom in both intermarriage and Reform and Conservative affiliation, they could hardly have mattered more.

Initially at least, American interests prevailed ... [inane detail] ... But what looked like the triumph of American-style pluralism instead provoked an unprecedented split between American Jewry and the Jewish state, as well as rifts between American Jewish branches. ... Prime Minister Yitzhak Shamir promised in May 1987 to introduce and amendment to the Law of Return requiring the Chief Rabinate to approve all conversions. This meant essentially that only Orthodox conversions would pass muster. ... In November 1988, just after the Orthodox bloc had added several seats in the most recent Knesset elections, rumors swirled that Shamir would cut a political deal to ensure the passage of the conversion amendment.

Much of American Jewry reacted with fury and panic. ... In 1997... the issue re-emerged with a vengeance. The ultra-Orthodox parties, now part of Benjamin Neanyahu's ruling coalition, introduced a bill to give the Chief Rabbinate control over conversion. Like Shamir before him, Netanyahu was torn between his religious constituency and an inflamed American Jewry; unlike Shamir, he also faced the task of integrating into Israel two hundred thousand Russian immigrants who were not Jewish according to halakhah [sic]. Israel now had a reason of it's own for reconsidering conversion standards.

Basically, American jews are always perpetually shitting themselves, every time Israel keeps reconsidering how the Law of Return works because... well... they might not technically count as jews in the first place.

Lol, sux I guess. Turns out the Israeli jews actually think religion is important, and they aren't huge fans of secular jewish progressive nationalism.

American jews: "How could they do this?!!"

Israeli jews: "There's a whole book about this. Didn't you guys read it?"