My problem with the whole anti-Israel/anti-Zionism/anti-you-know-who absurdity is that they can never articulate exactly where American interests diverge from Israel's regarding the actions we're taking.
For example, you can honestly disagree on the Iran conflict. But to dismiss the logic of those who DO agree with it as simply a product of Israeli propaganda is absurd.
They also forget who is really in charge. The idea that the big dog just ceded control of his interests to the yapping puppy because reasons in inane to the extreme.
Finally, the argument makes no sense on its face. No one can honestly contest the idea that American power is unmatched in world history, and despite our 250 year history of bickering amongst ourselves, we are still the model beacon of strength and classically liberalized societies. If you want to argue that the Jews are behind everything (fundamentally untrue), then you have to concede the impact has been a force for extreme good.