You have made some very good observations. However, I think if you dig deeper, you may be able to find more than what you observed and presented above. Try to see:
(1) Israel has many of nationalistic powerful people all over the west, they have the keenness in seeing a homeland for Jews
(2) US is making use of (I would say encouraging) the Israel conflict with the Arab in order to continue their control of the oil resource in middle east
(3) The Arab leaders are not keeping their people happy by taking an anti-Israel stand, this trick is slowly slipping away, and Osama has awakened their sense that they have been really working with if not for the West for decades, just so the wealth will flow into those few. This is the killing factor for the middle east peace, and balance of conflict. Even US now is not possible to keep the balance, as the realization and uprising (US call it Alqadi terrorism) will result in unforseeable shift in power. Hence Sharon has to tuned down and try to accomodate to win back support of some middle stand not so extreme Arab.