This is factually incorrect. Every poll of the US Jewish community has shown that between 80% to 90% are supporters of Israel. At most a few thousand US Jews are not fans of Israel, and they are very vocal about it.
Polls of the “US Jewish community” tend to really be polls of people who read Israeli newspapers that do US polling. There’s a manifest bias in that.
Here’s the source I usually use[1]: 45% of American Jews consider Israel essential to them. Another disjoint minority consider it “important but not essential.” Neither of these imply support for the Israeli state, and neither separates the importance of Israel qua state or political institution from Israel qua the family our loved ones of the people being polled.
Most of the polls in the US tend to be done by American Jewish organizations such as the AJC. The AJC polls actually specifically ask about support for Israel.
Regardless all of the major Jewish denominations in the US (reform movement, conservative movement, modern orthodox and even most of the heredi movements these days) officially support Zionism. Now you have individuals in each group who may describe themselves as anti-Zionist, but it is a very small minority (although growing in the reform movement).
Among non affiliated Jews the percentage of anti Israel/anti Zionist Jews may be a bit higher but it is still pretty low. It’s no where near millions (you only have 6.5 Million Jews in the US).
Now none of the above means that there is not a large segment of pro Israel, American Zionist Jews who are against a lot of the current and previous governments policies when it comes to the West Bank and Gaza (or in general).
Heck I am a Canadian born Israeli, who is personally against a lot of the policies of the Israeli government. I quite often cringe at some of the comments and actions of some of our politicians. On the bright side it helps me chose who not to vote for
Here’s the source I usually use[1]: 45% of American Jews consider Israel essential to them. Another disjoint minority consider it “important but not essential.” Neither of these imply support for the Israeli state, and neither separates the importance of Israel qua state or political institution from Israel qua the family our loved ones of the people being polled.
[1]: https://www.pewresearch.org/fact-tank/2021/05/21/u-s-jews-ha...