Well, it isn’t explained by this cartoon.
Source: NZ Herald.
Lets assume, for the sake of argument, that New Zealanders aren’t racist. In this case, I can’t see the problem with “foreign investment”.
Think of it this way. There are private individuals that happen to be New Zealanders that own things. There are private individuals that happen not to be New Zealanders that would like to buy these things, and guess what – they value them more highly than the New Zealanders do. So they trade.
So what the cartoon misses is that this stuff wasn’t ours to start with, it is being sold by its owners to a buyer who values it at a higher level. Applying a feeling of ownership on the basis of nationalist sentiment is weird.
Update: So New Zealanders should be “economic patriots” aye. Right …