The motion was passed at the party's conference in Brighton over the weekend, drawing both celebration and mourning among members. Vivien Lichtenstein, the head of the Jewish Greens group, confirmed on Monday that she is considering quitting the party over the decision. Many other Jewish Greens, the majority of whom describe themselves as anti-Zionists, are reportedly weighing whether they remain welcome.
Some party members have questioned the purpose of the vote, arguing it will distract from the pressing goal of keeping international attention on Gaza and holding the Israeli government to account, rather than igniting a divisive ideological debate that could harm the party.
The policy explicitly calls for Israel to be replaced by a single Palestinian state with equal rights for all, and equates Zionism with racism. The move has drawn criticism beyond the party, with Guardian columnist Jonathan Freedland commenting on how the vote has been received by many Jewish people outside the Greens.
The Green party has not yet issued an official response to the backlash, and the conference continues this week.