> You can say but.. they will hurt the Muslim population..

Well, I'd actually say that Iran would have no benefit from that.

Really, the main threat to Israel from Iran -- or any of Israel's other regional foes -- getting nukes is that Israel's own nuclear arsenal would no longer provide it as free a hand in its own policies towards it neighbors as it has heretofore had, since it wouldn't be holding an unequaled trump in any runaway escalation provoked by Israel's policy choices.

I don't even understand what types of escalation you're talking about. Israel has peace aggreements with all its neighbourhood countries, and Israel being a nuclear power hasn't changed a thing for terrorist organisation which have attacked israel for the last 30 years.

All the trouble in the region comes from non-national entities, or state-sponsored terrorist organisations ( with daesh being a weird hybrid of the two). Letting iran have the nuclear bomb will only push conflicts toward even more terrorism, especially between shiite and sunnites.

Israel has peace agreements with Jordan and Egypt, but not its other neighbors, and fairly regularly engage in cross-border military operations, recently particularly in Syria.