Killing an Iranian scientist involved Iran's developments towards its acquisition of nuclear weaponry is entirely justifiable, if Israel is indeed involved. Iran with nuclear weaponry constitutes and existential threat to Israel. Israeli diplomats operating in India and Georgia, on the other hand....
You are the classical Jew-hating anti-Western leftist who plays the moral relativity card, suggesting that all parties in politics are equal and that somewhat comparable acts are equally justifiable or condemnable. Your ideological ancestors were saying the same thing in the 1930s, suggesting that Churchill's warnings about Nazi Germany's abrogation of the Versailles Treaty and increasing militarization were unfair. After all, perhaps Nazi Germany has a viewpoint, and in-line with your amoral ideology, their viewpoint is equally valid and worth or consideration. If the powers of the Entente can now be militarized, why not Germany?