The leader of the Al Quds Day march - who was previously investigated by police for blaming "Zionists" for the Grenfell fire - has used this year's event to claim "the far-right and Israelis are all one" - though far-right demonstrators told the JC "Jews don't like us and we're anti-Zionist".
In another carefully planned stunt at Sunday's anti-Israel march from the Home Office to Downing Street, protestors gave a group of anti-Zionist Jewish a burning Israeli flag to brandish.
One of the demo's organisers, wearing an jacket marked Legal Adviser, was clutching the flag on a pole hidden from Metropolitan Police officers as it was moved along on the ground to the front of march.
The legal adviser said he wanted to hand the flag to the "rabbis at the front so they could do something."
The flag was then set alight and handed to members of anti-Zionist fringe group Neturei Karta UK who held it aloft to loud cheers as it burned.
Filmed by the JC as he addressed protesters through a loud-speaker at the march on Sunday, Islamic Human Rights Commission director and march leader Nazim Ali stated: "The far-right and the Israeli flag - what a match in hell! What a match in hell!"
He said later that "the far-right and Israelis are all one."
Then, to the tune of Pink Floyd's Another Brick In the Wall, he told the gathering: "Hey Zionists, leave Palestine alone. all in all you're just a bunch of land grabbing thieves.
"We don't need no Zionism. We don't need no Zionist control."
Protesters were this year barred from carrying the Hezbollah flags that had been a common sight on past marches in London.
Mr Ali and other march leaders decided to seize on the presence of far-right members of the EDL and Football Lads Aliiance at Al Quds Day marches in recent years in an attempt to further the argument favoured by many on the far-left of alliance between Israel and the far-right.
But while the Israeli flag was brandished by some of the English extremists, the mainly Jewish counter-protest organised by the Sussex Friends of Israel group appeared to have no link or contact with them.
Instead the group, who were joined by Zionist Federation supporters, congregated in a different area to the far-right, protected by CST officials in front of a banner that read Free Gaza From Hamas.
But Mr Ali told the rally: "What we have seen today is proof of the Israeli flag belonging to the far-right.The far-right and the Israelis are all one."
He added: "They are the antisemites. Israel is the antisemite country."
But when the JC spoke with leading members of the Football Lads Alliance outside the nearby Red Lion pub, they admitted there was no alliance with Jewish pro-Israel demonstrators on Sunday.
One said: "The Jews, they don't like us. And anyway, we are anti-Zionist."
Another member of the far-right made a Nazi Seig Heil salute as police watched on.
As the marchers made their way towards Downing Street, Mr Ali repeatedly shouted the infamous call for Israel's destruction: "From the river to the sea Palestine will be free."
He then sung: "We'll be sitting in Al Quds - we'll have a cup of tea."
And as members of the Neturei Karta became visible to some on the protest a group of women were overheard booing and asking:"Why you here? Why you here?"
The were then informed the anti-Zionist Jews were in fact pro-Palestine.
But on several occasions Mr Ali also used his microphone to attack British Muslims who he deemed to be fake in their devotion to the religion - branding them "munafik".
At one point he singled out Home Secretary Sajid Javid, singing: "Some of those Muslims are Zionists."
Later addressing the demo outside Downing Street Scottish Palestine Solidarity Campaign activist Mick Napier ranted about Labour suspending National Executive Committee member Pete Willsman, suggesting he was the victim of "Zios" who "plot how to smear those of us who stand up for the Palestinian people".
Mr Napier said: "There’s a guy who’s just been suspended from the Labour Party for saying the Israeli embassy is behind the whole wave of false, phoney, fake, malicious antisemitism allegations.
"It’s obvious. They don’t hide it. The Israeli embassy does it. They have workshops around the country where all the local Zios get together.
“Christians and Muslims and Jews; they all get together, the Zios. Because there are some of each. They plot how to smear those of us who stand up for the Palestinian people.
“Your crime today is to stand up for the noble people of Palestine."
Also on the demo was Tony Greenstein, who was expelled from Labour over antisemitism claims including the use of the term 'Zio'.
As the JC filmed the protest, one woman said: "They've had all the power over the years haven't they?"
Asked who she was referrring to, she said: "Zionists. Zionists owned the media. Ninety-five per cent of the media is controlled by Zionists. You don't hear of a Muslim lobby or a Muslim banker."
Another man intervened to state that Israel was "established using racial cleansing which is established by Israeli classified reports".
He later added he had "read about everything bad you had done throughout history."
Al Quds Day is an annual march staged across the world on the last Friday of Ramadan. It began in 1979, after a ruling of the leader of the Islamic Revolution, Ruhollah Khomeini.
After the 2017 event, the JC exposed Mr Ali's series of chants blaming the Grenfell fire in west London on "Zionists."
But a private prosecution by the Campaign Against Antisemitism but it was shut down by the Crown Prosecution Service.
On Sunday, Mr Ali told protesters to beware of intruders from "far-right" media organisations who would attempt to upload videos from the demo.