"We treasure our strong Jewish support and staff, just as we treasure the support from pan-Arab democracy activists and others who share our hope for a just world." — Julian Assange
That's the right attitude.
It appears that Julian Assange does not lump all people of a particular ethnicity together in terms of each individual's ideology and behavior and then judge and condemn them all. He doesn't come across as a racist or ethnic bigot.
It remains unclear though as to his view of Zionism, anti-Semitism (a misnomer supposedly meaning "anti-ethnic-Jew"), and the holocaust industry, per se, because the mainstream media and others who have had access to him have been too timid to put it right to him and then tell it like it is to the world. Now why is that?
That's the conspiracy. There is a reason people have been colluding to avoid the subjects. It's very poor/weak journalism.
Bring up the issues! Pin him down but fairly. Repeat his actual replies in full. Then give him further opportunities to reply in full.
Unless we flesh out all the issues, we'll all remain way too far in the dark.