And that is biggest load of bollocks I have ever heard.
One of the reasons why some non-Air NZ folks have the problems they do with crappy GA operators, is that Air NZ pilots and NZALPA are not the slightest bit interested in helping them when they face issues.
GA pilots standing in solidarity with Air NZ pilots would have precisely no effect whatsoever on whatever Air NZ try and pull on their pilots. Why should they bother anyway, it would never be reciprocated.
NZALPA is an Air NZ union, plain and simple. Pretty toothless one, too.