To be sure, not everything is a bombshell. Much of the poll is pretty old hat: Jews are overwhelmingly Democrats. We like Biden. We detest Republicans. All of this is pretty dog bites man. Orthodox Jews have near polar opposite views from the rest of the Jewish community, which isn't quite dog bites man yet but is approaching that status. Jews think antisemitism is a significant problem, and far and away see it as a bigger problem on the right than the left -- that should be dog bites man, but you'd never know it from Jewish media coverage.
But on the Israel side of things, there were some genuinely notable findings -- most of which center around the surprising robustness of certain very harsh criticisms of Israel. A quarter of American Jews think Israel is an "apartheid state", and only 28% think such a view is antisemitic. A third think Israel's treatment of Palestinians is reminiscent of American racism, and a fifth think Israel is committing "genocide." For each of these, fewer than half of American Jews think the view in question is antisemitic (though majorities disagree with all of them). So these views are still very much a minority, but they're not negligible either -- more Jews think Israel is an apartheid state than plan to vote Republican in 2022, for instance.
The one outlier to all of this was the position that "Israel has no right to exist." Unlike "apartheid", "racism", or even "genocide", that position overwhelmingly was opposed and perceived as antisemitic by respondents -- 84% disagreed with it substantively, and 67% thought it was antisemitic. I'm not sure what makes that position such a glaring red line compared to others, but it is. I've always been a bit perplexed at those who really plant their feet on the "Israel has no right to exist" hill -- trolls and rabble-rousers I get, but there are people who really seem to think that asking one to affirm "Israel has a right to exist" represents some deep-cut barrier to a host of pro-Palestinian politics, when to my ears 95% of the time the demanding ask "do you agree Israel has a right to exist" can be neutralized by saying "yes" and moving on to specific policy briefs. This poll very much backs up my intuition. If you sharply criticize Israel, even say it is an apartheid state, a majority of American Jews won't think you're antisemitic and a non-negligible chunk will agree with you. If you say Israel has no right to exist at all, you're very much on your own.
The other interesting bit of information, to my eyes, was the poll's support for two-states versus one-state solutions in Israel/Palestine and (more importantly), disaggregating one-staters into those who think Palestinians should be allowed to vote in the unified state versus those who don't. Of these three options, two-states maintains strong primary with 61%, while the two one-state options (the poll calls them "annexation" and "one-state", though the more accurate labels would be "apartheid" and "non-apartheid") each get around 20%.
Like with the harsh Israel criticism, 20% is definitively a decisive minority, but it isn't a negligible one. It can definitely exercise influence. And in some ways the two-staters are in a more awkward position because they have 20% dissidents hitting them from both sides -- those who want apartheid and those who want to abolish a Jewish state. The "center" (in quotes because the Jewish "center" is really just mainstream liberalism) can hold, but it will need to fight, because it is being squeezed from both ends. The left-wing one-staters have been dismissed as a fringe phenomenon, and they're not -- they're not the "silenced majority" either, but they're very much present and we can't put our heads in the sand about them anymore. The right-wing one-staters, for their part, are already inside the tent, but there's denialism about what they're actually asking for (explicit apartheid) -- we also need to stop being ostriches about who they are and what they stand for.
Finally, of relevance to my "pick your stick" post from a few months ago, the survey has some interesting data on the subject of foreign aid to Israel. The short version is that strong majorities support continuing aid to Israel, but a substantial majority also favors conditioning aid so that it cannot be used to expand settlements. Peace Now recently became the first pro-Israel group to endorse the prospect of imposing aid conditions, and this poll suggests they have solid backing behind them (while falsifying the notion that American Jews want to cut Israel off outright).