The arguments abour God given land and the return of the messias sound very ISIS-like.
You can criticize the Jews all you want but it's still THEIR LAND. They lived there centuries before Islam even began.
Though it ought to be point there were almost no Jews left in Palestine when the Muslims came and due to centuries of living there Arab have a right consider parts of Palestine "their land".
I really think this is a stupid argument. You have plenty of lands which were once dominated by one nationality but are now, frequently for centuries, a homeland to some other. There's too many examples to name there.
And, for the record, I've been always in favor of Israel's "right to exist". We may debate whether the Jewish state should've been established in Palestine, given centuries of no Jewish presence there and somehow artificial resettlement, but it's irrelevant. Israel exists since the late 1940s and you can't just reverse this basic fact. After experiences of the World War II, establishment of Jewish state was a necessity. It's too bad it turned into a prolonged conflict (started, it must be admitted, by the Arabs' initial refusal to share) though.
But this also means you can't reverse the basic fact parts of Palestine are an Arab homeland.