New Zealand won’t be safe, the entire stratosphere will be contaminated with radioactive dust. At least they will die a slower death than will we.
Not to mention. Say you live in New Zealand. The rest of the world blows up in nuclear war and currency collapse.
Right about then a bunch of Gulfstreams start landing and disgorging the people who caused it all. Think they’ll be content to move to a bungalow and grow a few tomatoes?
So Kiwi, you gonna be very friendly to them very long?