I'm relatively new to San Francisco and to a newcomer, the contrast between neighborhoods is shocking. I came from New York so I was used to micro-neighborhoods

I'm relatively new to San Francisco and to a newcomer, the contrast between neighborhoods is shocking. I came from New York so I was used to micro-neighborhoods but SF takes it to a different level. It seems that SF has decided to herd all of the criminal activity and destitute people into certain neighborhoods and just contain it versus solution based approaches. I have no idea if this is the actual strategy but it sure seems like it.