San Francisco has nearly 8 times higher population density than Auckland.
Add to that other factors like the size of the CA economy (wealth attracts crime), a lax criminal system, attractive social services (compared to the rest of the US), etc etc. It's an apples to oranges comparison.
Add to that other factors like the size of the CA economy (wealth attracts crime), a lax criminal system, attractive social services (compared to the rest of the US), etc etc. It's an apples to oranges comparison.