More non-Jews than Jews in historical Palestine

Haaretz is running a story about a demographer who claims there are today more non-Jews than Jews in the area currently comprising of Israel, the West Bank and Gaza. This is the kind of thing that extremist Jews in Israel often use to advocated ethnic cleansing, which they call "transfer." The demographer also claims that only 30,000 Palestinians are behind the wall currently being built by Israel, and not 400,000 as Palestinian officials are claiming to the International Court of Justice. Let's hope this is not a repeat of the embarassing exagerations that were made about the Jenin Massacre (which remains a massacre nonetheless.)