that's exactly what I meant Murph. We can't do something like that without the whole world calling us xenophobes. Plus there's just too much international business and other social nonsense. A tiny country like n-zed can much more easily do it.Not really.
NZ & Australia are both island nations, so we each have only 1 border, but if you think about it Canada only has 1 border and the USA has only 2 borders (excluding Hawaii).
All it needs are the "balls" to say . . . shut the gate, NOW.
I think you misunderstood me to mean it's physically impossible.
Although it sort of is when you consider all the illegal immigration. Last I checked people from indonesia weren't exactly swarming australias borders 😄