As far as housing I think imported materials are pretty expensive in NZ? That could be a factor.
But it is interesting, the crime issue with these progressive governments may prove as problematic as any of the other silly things they do. But they don't seem to get it. You have more and more crime, things like tent cities, drug problems are through the roof, and the answer is always more forgiveness, more providing drugs for addicts, allowing more tenters, etc. The fact that it doesn't seem to work does not seem to make any difference.