He vetoed the Clinton parameters for peace by refusing to extend the construction freeze as the U.S. urged, he's squeezing Palastinians into Areas A and B whenever the opportunity presents itself (military reserve areas, archaeological reserve areas, lack of building permits, etc.), and he's supporting settlement expansion. It is utterly rational for any Palastinian to conclude that in the event of a regional war, Israel would try to expel Palastinains from the West Bank to the extent feasable in order to end up with more favorable demographics. It certainly is no more far fetched than assuming Iran will nuke Israel given the right circumstances. To be sure, if the shoe were on the other foot, the Palastinians would be just as eager to expel the Jews from pre-'67 Israel, and nonacceptance of Israel as a Jewish state is just as deeply imbedded in Palastinains as the Palastinain threat is imbedded in Israel. So this mock anger on Bibi's part, or on Abbas' part for that matter, is just a bit wearisome.
Firebomb thrown during demonstration in northern Israeli town of Umm al Fahm (Haaretz)
from the article: Netanyahu, Lieberman furious over Abbas' UN speech