Just a couple of points Nerd,

The area now known as the middle east was never colonised by any European power, formerly part of the Ottoman Empire, it was broken up under the terms of the Treaty of Versailles, to be adminstered by the League of Nations. That particularly ineffectual talking shop then granted League of Nations Mandates to administer parts of that area to the United Kingdom and to France.

The proposed British solution, after two separate arab rebellions, both initiated by the arabs, based on complete downright lies formulated and disseminated by Yasser Arafat's Uncle was to grant 20% of the territory to the Jews and 80% to the arabs. The Jews were prepared to accept this, the Arabs under the guidance of Arafat's uncle were not. Some moderates on the Arab side saw the way this was going and the Hashemite Kingdom of Jordan was created. Under the rules of the British proposal the Jews could only have their 20%, they were specifically forbidden from settling in Arab areas, the Arabs on the other hand were perfectly entitled to buy land and settle in the Jewish area.

After the League of Nations Mandate expired and the British withdrew, the United Nations again came up with a similar proposal, which was again accepted by the Jews and rejected by the Arabs. They fought a war which created the State of Israel, this state being immediately recognised by the United Nations. In 1951, the Israeli Parliament offered right of return to all Palestinian refugees, this was rejected, the Arab states wanted to see the State of Israel eliminated.

I agree with you that having been offered something, which you then reject and put the dispute to force of arms and lose. It is totally unreasonable, and unrealistic, to expect that you can then demand that the original offer still stands, and that you will now accept it on the premise that it only represents an interim position, until you are ready to strike again.