He says that the UN vote is a step on the way for Arabs to reclaim the Negev, Jerusalem, Haifa, Jaffa, Acre, Nazareth and Safed and all Galilee.
That's not enough of a reason to say that peace is impossible, though.
But Qassem brings up something else that is undoubtedly a widespread belief, one that does make peace literally and totally inconceivable.
The sheikh said:
We in the House of Palestine Scholars stress the legitimate principles for the liberation of all of Palestine from the sea to the river, from north to south, and we will not give up a grain of sand; all Muslims and Arabs will help us and stand by our side through jihad and resistance to liberate our land from the clutches of this usurper entity and this is their duty - because Palestine is not the property of the Palestinians only and not the property of the Arabs, but belongs to the Islamic nation, Allah bequeaths the earth and hence the Arab and Islamic support for our cause all have the power to return it to its owners...
Even if the Palestinian Arabs decided that they are willing to compromise for peace tomorrow, the larger Islamic world will never accept anything less than every inch of Israel that they believe is their God-given right. They would brand the Palestinian Arabs as traitors and start the next stage in their never ending quest to destroy Israel, by every possible means at their disposal - military, demographic, political, lawfare, public relations, using useful Leftist idiots - everything.
Can anyone say, with a straight face, that this wouldn't happen?
(h/t Lachlan)