Kirstie Allsopp took aim at Green Party leader Zack Polanski after his party voted to classify Zionism as a form of racism.

A controversial motion calling for the move at the party’s annual conference in Brighton saw 1,022 votes in favour and 813 against.

Israel has since barred Polanksi from entering the country and accused the Green Party of legitimising “the destruction of the State of Israel” with a “clear antisemitic text”.

TV presenter Allsopp has now hit out at Polanski online, writing on X: "I believe in the right of the state of Israel to exist, therefore I am a Zionist, therefore, according to the Green Party, I am a racist.

"I will keep to myself what I think they are, but electorally they're toast. The motion was not to condemn Netanyahu, which I would do with bells on, it was to condemn Zionism, full stop."

Polanski did not take part in the vote on the motion, having left the conference after his speech on Friday to campaign in next week’s Holborn and St Pancras by-election.

Allsopp added in a separate post: "God, it's going to be satisfying seeing Zack Polanski get his just desserts on Thursday (October 15)."

In a statement with Green MPs and his deputies, he said there is “no conflict between supporting the rights of Palestinians and the rights of Jewish people”.

The motion was passed despite opposition from several senior figures within the party.

Brought forward by the members' group Greens 4 Palestine, it defines Zionism as a political ideology advocating "an ethno-nationalist Jewish State" and calls for the establishment of a single Palestinian state with equal rights for all citizens, including Jewish people.

However, the motion also states that Zionism should be “treated as any other form of racism”, which critics point out could include practicing Jews and members of synagogues across Britain - making it impossible for them to join the Greens.

Following the vote, a joint statement said: “As Green Party leaders and MPs, we will always uphold universal human rights. We will never tolerate any form of discrimination or harassment.

“We will continue to stand in opposition to genocide, ethnic cleansing, apartheid and the illegal occupation. We will continue to call out the heinous crimes of the Netanyahu government.

“And we will continue to work to ensure that the Green Party is an anti-racist party in every way. We know there is no conflict between supporting the rights of Palestinians and the rights of Jewish people.”

The Green Party's existing policy has supported either a one-state or two-state solution to the Israeli-Palestinian conflict if achieved through a democratic process.

The newly approved motion specifically calls for a single Palestinian state and does not advocate a two-state settlement.