Mr Austin added: “Surely they know in their hearts he has allowed the party to be poisoned by racism and extremism and that he himself has said things which are racist themselves. He is unfit to lead the Labour Party and certainly unfit to become our Prime Minister.”
Later answering questions from Deputies, Mr Austin said: “Look I’m Labour – the values that brought me into the party are the values that made me leave.”
In a further damning attack on the Labour leader, Mr Austin said that Mr Corbyn “really does believe, I promise, that he is the victim in all of this.”
He added that Mr Corbyn “is much angrier with the people who complaint about racism against Jewish people than he is with the people who are responsible with it.
“He is so convinced of his personal virtue and impeccable anti-racist credentials he thinks it is impossible to believe he is guilty of any of this.”
Mr Austin cited last year’s Enough Is Enough demonstration against Labour antisemitism as an example of how well he believed the community had stood up to the problem.
Pointedly, he called for “discipline and unity" among the Jewish communal organisations as the fight continued.
Mr Austin also reiterated why he had taken up the issue of fighting Labour antisemitism so passionately himself.
He paid tribute to his late father, a Jewish Holocaust survivor, who taught him the values of opposing all prejudice.
But Mr Austin said: “I’m not Jewish myself, I represent a town with no Jewish community at all. Some Labour MPs say ‘Ian why have you picked this fight?’
“I think if Luciana Berger, Louise Ellman, Margaret Hodge or Ruth Smeeth - they don’t have a choice about confronting antisemitism.
“I think all of you don’t have a choice, so people like me I don’t have a choice either.”
Mr Austin added that you “don’t have to be sleeping rough, sleeping on the streets to campaign against homelessness” nor “be Muslim to be appalled by Islamophobia.”
He said: “I don’t have to be Jewish to know antisemitism is wrong. I have never been more certain of anything in politics. It’s a basic question of right or wrong.”
