Good logic
For the sake of argument, I'll grant your premise that U.S. foreign policy has amounted to telling Israel to sacrifice people to suicide bombers. Are you now concluding that the U.S. is morally obligated to sacrifice the same number of our own citizens before we can take any action in our own defense?
Now, as for the premise ... Let's suppose the U.S. policy has been to explicitly tell Isreal to sacrifice its people to suicide bombers. Why would they listen to us? Could it be to keep receiving all the military and other financial aid we provide? Do you really think there are no strings attached? If you don't want Israel to feel bound by U.S. policy, all they have to do is stop taking the money.
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