I think people are largely missing the point regarding borders and the like.
More to do with ability (or lack thereof) to deal with a major outbreak, than parochialism, politics, space aliens or whatever.
ICU capacity is a good indicator of that ability.
NZ went tougher, ICU places per capita substantially less than Australia.
Western Samoa, less again. A full on sitting of parliament decides entry on an individual case by case basis there.
But keep up the state hate sledging.
Makes you look smarter.