Nobody said Israel will or can attack Natanz. What I said was a high intensity conflict may cause Israel to use nuclear weapons against Iran. How that conflict begins is anyone’s guess.I think you believe the Israelis will fly directly towards Natanz, bomb it and fly away as quickly as possible. Right? Do you believe that?
That is not what will happen. To bomb Natanz (and other places) you need to bomb air-defences, military bases,airports, chain of command etc to prevent an immediate disruption to the aerial campaign and hamper any retaliation. So within a few hours Israel would have already indiscriminately bombed Iran. It would be well within international rights for Iran to respond in the same manner.. tough luck for Israel as it is only 100km's wide it would suffer an unimaginable destruction at the hands of Iranian missiles. The world (apart from the US) wouldn't condemn Iran for responding to the Israeli aggression. That is the whole problem here for the Israeli hawks.
Btw, Israel does not have the capability to carry out an extensive aerial bombing campaign of Iran. Iranian territory is too far and too huge for Israel to take on. They need the US onboard with them but that is not going to happen under Biden.
Conclusion : indiscriminate Iranian bombing of Israel is well within all International norms.