Apparently, they're the ones that stepped in and got Kinsella fired from the CJC:
That letter is an after-the-fact attempt at spin by Kinsella. In February, he threatened to blackball and bad-mouth the Canada-Israel Committee, a sister organization to the Canadian Jewish Congress. The Jewish community's central advocacy agency ordered Kinsella off the CJC. He asked to 'resign' instead of being fired, just to save face. But fired he was.
Yo Ez, who exactly is on the Jewish community's central advocacy agency? Freud? Jesus? Wittgenstein? Ron Jeremy? And do they live on UFOs over the Jewish quarter of Montreal, or what? And as a non-Jew, can I join? Do I get a cash card that never runs out? What's the deal?