Jim,
Goldman was a critic of the Israeli government and therefor Ben-Gurion according to your own link.
His claim contradicts every known statement by Ben Gurion on the subject.
He alone claims that Ben-Gurion said it, and he waited twenty years until BG was safely dead to claim it.

If your case relies on such "evidence" it is too weak to even consider.

Compare that with your disbelief that anti-Semitism is a serious problem for Labour.
I quoted publicly made statements from the Deputy Leader of the Party, the Leader of the Scottish Labour Party, the (Labour, Muslim) Mayor of London, the entire NEC and others saying it is, yet you deny it!!!

Why do you believe your man without question but refuse to believe all those??