This has nothing to do with British law or Israeli law. It has to do with our law and specifically our Constitution which restricts the Presidency to people whose parents were US citizens at the time of their birth. At that time one is a natural-born citizen according to the common usage of the English language. The Israelis cannot change that. Only an amendment to the Constitution can change it.
ML/NJ
It has to do with our law and specifically our Constitution which restricts the Presidency to people whose parents were US citizens at the time of their birth. When birthers are refuted on the dual citizenship issue (because they can't stomach disqualifying all American Jews from the oval office since they are ALSO dual citizens), they suddenly shift to a new argument. Arguing with birthers (and truthers) is like nailing jelly to a wall.