whose fault

"While many American jews like to engage in a form of group think that if the Israelis were more magnanimous and offer more concessions then the Palestinians would come around. But since the advent of Oslo how has Palestinian leadership readied their people for the eventuality of having to live next to jewish neighbors? By using children's programing to portray jews in the most vulgar caricatures? By employing a curriculum that doesn't even have Israel on the map? By announcing that any future Palestinian state will be Judenrein?"