The only real reason for supporting Israel in 2011 is because the USA as a whole sees itself as a Christian nation, if secular; yes it is a contradiction, but so is much thought in the USA (where I was born, raised and dwell.) The Jews are the Christians' imaginary god's chosen people and thus we, as a Christian nation, must be allied with them. This means supporting Israel unfairly in many circumstances: Israel is basically a colonial empire, its 3 colonies being the Gaza Strip, the Golan Heights and the West Bank as they are not in a balanced relationship in any form: They are not fully independent yet their citizens do not have full nor equivalent rights or special privileges nor as Israelis, whatever their ethnicity, in Israel proper. The Gaza strip is most like a South African bantustan in lacking full rights, full independence as well as special privileges, not very much like the French Overseas Departments, which have rights full rights, lack much independence and have few special privileges, making them very close to full members of France in reality. At about the same level of mutualism as the French Overseas Departments, but for quite different reasons, are the Autonomous Regions of the PRC, which have a bit of autonomy, full rights and some special privileges.
We let Israel get away with many things that we do not let other countries get away with: For example, India has been embargoed in arms trade since it gained nuclear weapons but Israel, though not officially nuclear, obviously has nukes yet we still trade with them extensively. Nor do we trade military supplies with nuclear-armed Pakistan, which is supposed to be our ally. And if Saudi Arabia tried to go nuclear, I am sure we would try to overthrow King Abdullah. In addition, the USA is extremely lenient with Israel with regards to its breaching other states' sovereignty: When Israel invaded Idi Amin's Uganda to capture hostages in 1976, we did nothing at the very least while when Julius Nyerere liberated Uganda from Amin's rule but a few years latter, we were openly hostile to Tanzania for overthrowing the megalomaniac.
In short, we give Israel way too much slack for all the asinine things it does while when other countries, often our allies, do equivalent things or do things that are indeed more upright and benevolent, as with Nyerere's Liberation of Uganda, we scold, harass and/or otherwise take punitive measures against them.
Really, Turkey would make much more sense as our key ally in the Middle East, it is even more secular than we are, it is more stable, has far more resources and far more people, but the Turks are not the Christian god's chosen people, so they get no special treatment over other allies.
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Learn the patterns of the past; consider what is not now; help what is not the past; plan for the future.
-Myself