Can USA be an honest broker in the Middle East?

Should we be pro-American Americans?
There is no way to reconcile the Petraeus need for the nations in the Middle East to cooperate with US in Afghanistan so long as Israeli burden hangs on our Administration. It is all dependent on our government ability to project a Pro-American posture over those of Pro-Israel. Can we sacrifice our interests in the Middle East for the price of being an extension of Israel's foreign policy?

Chris McGreal, The Guardian, Monday 5 July 2010, in the article US questions its unwavering support for Israel concludes: "Consensus forming in Washington that Israeli government is abusing support with policies seen to be risking US lives."
Pro-Israel position has been: Russia must stop selling defensive weapons to Iran, Syria, Venezuela, and the like. These defenses would make harder for Israel to bomb Syria and Iran.
Pro American position has been: Maybe we could also stop selling arms to Egypt and Saudi, Israel, and too many other nations to mention. But our Congress burdened by Pro-Israeli supportes would not allowed this limitation to Israel.

Pro American position has been: We could also stop arming Israel with our latest offensive armaments and ships and planes capable to carrying nuclear bombs. We could have stopped Germany donating nuclear capable submarine to Israel.

Could we be an honest broker in the Middle East? Should we be pro-American Americans?