If nukes are so good why Israel isn't safe? Or in other words you overestimate how useful nukes are. On contrary for Iran them having nukes mean Israel have to guess if coming missiles contain nukes or not and whatever to strike back with their own nukes where as now they can freely sand missiles without escalation concerns.

Israel isn't safe? They are probably the most well defended country on the earth. A very capable domestic military and the full power of the US as an attack dog willing to do their bidding.

Nukes do not help against guerilla warfare: their destructive power is so big that they are really unreasonable attack weapon, and only a deterring factor instead.

They protect against being "policed" by big world countries.

Eg. if Ukraine still had nuclear weapons, Russia would not have been invading them (or are they "protecting" them, as promised when they took their nuclear arsenal for destruction?). If Iran or Iraq had nuclear weapons, they would not have been bombed by US.

>If nukes are so good why Israel isn't safe?

Israeli nukes are the main reason we haven't had regime change in Tel Aviv at the hands of a Turkish/Egyptian/Saudi/Iranian coalition. Israeli nukes are why Iran has had to settle into a pattern of slow, distant, annoyance via proxy forces (which lack a capability for existentially challenging the IDF).