A progressive bloc consisting of the Jewish Labour Movement (JLM), Liberal Judaism, LJY-Netzer and Masorti Judaism later voted down Mr Hoffman’s motion against Rabbi Rich.
Mr Hoffman wrote on Facebook afterwards: "The... motion was defeated at the ZF Biennial today. Utterly predictably the Left packed the meeting to ensure it was defeated."
Mr Hoffman claimed that one of the speakers, Jeff Halper of the Israel Committee Against House Demolitions, breached the International Holocaust Remembrance Association (IHRA) definition of antisemitism by speaking in support of a one-state solution to the Israel-Palestine conflict.
He wrote on Facebook: “This is antisemitic (see IHRA which says that ‘Denying the Jewish people their right to self-determination’ is antisemitic). ‘One State’ would mean the end of Israel as a Jewish State.
“The fundamental expression of Zionism is the Jerusalem Programme. All Officers and Patrons of the ZF must declare adherence to it.
“The Jerusalem Programme says that one of the foundations of Zionism is the bond of the Jewish people to its historic homeland in the State of Israel and the centrality of that State and Jerusalem in the life of the nation. Another foundation is strengthening Israel as a Jewish, Zionist and democratic state.
“Hosting a ‘One Stater’ and denying that ‘One State’ is antisemitic clearly violates the Jerusalem Programme. Rich claims to accept the Jerusalem Programme but his conduct tells a different story.”