this comment completely misses the point. I did not suggest San Francisco needs to be like Zurich. With respect, I think it is idiotic to suggest that the only option for the city to be as safe as Zurich is to become literally exactly like Zurich.

I also didn't say anything about flipping a city's character in a decade. Whether it takes 1 decade, 2, 3 or 4 -- there is no reason to accept the idea that city just has to be unsafe and nothing can be done about it