I agree with you. He is not unique, either, others in Iranian leadership have said that as soon as they have nukes they will use them, because (paraphrasing) Iran can survive a nuclear strike and Israel can not.
You are right, this is insanity, it is widespread in Iran, and the normal threats and diplomacy and military realities have no effect on such thinking. This makes it very spooky, its hard to negotiate with people who want a war, and will be disappointed by any other outcome.
I can only hope that smart people are making plans and checking them twice. Our weakness is not military, its moral and political, its not the ability to defeat someone on a battlefield, its the ability to get up every day and do it again as many times as it takes. Our soldiers are masterful; our pols and opinion-makers are weak to the point of psychosis; not all, but a goodly portion.
This is a dangerous combination; the dangerously weak confronted by the truly dangerous. We're headed for a real ride.
Amen. Fasten your seatbelt.