brooklyn13, Unarguably it is Israel's refusal to concede an independent Palestinian state. Hamas was elected because the people of Gaza saw the PLO too compliant to Israel. It is Netanyahu's opposition to a two state solution which is at the root of the conflict. All you other comments are bye the bye when looking at the basic cause of the conflict.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”