Rosenbaum is pointing out (regardless of possible mistakes and maybe even crimes if you want to go that far), that there are reasons for Israelis to lobby for support: for their own survival.
Conflating Jewish survival with Israel is just a shortsighted and strategically flawed as conflating Israel with Judaism. Concentrating the Jews in Israel seems to make little sense from a survival paradigm. Dispersal and diaspora worked fine for millenia. That's what allowed the Jews to survive the Holocaust. Not putting their eggs into one basket.
Besides, to me it's fundamentally insulting to say that American Jews need Israel for a sense of security. That's what we have a Constitution and Bill of Rights for.
The more accurate picture to paint is one that analogizes right wing reactionary zionists to beaten dogs that snap at one and all. If they are so paranoid that the only way to assuage their insecurity is for the US to sacrifice itself to protect Israel's interests, for the Palestinians to suffer apartheid and slo mo ethnic cleansing, and for war with Iraq and Iran and then whomever they next target, I say fuck em. That kind of dog is dangerous to everybody and everyone else's security depends on neutralizing it.