these are no go areas for law enforcement. places that unless forced to act the police don’t patrol.
Are those areas ruled by Sharia law? Just wondering.
Unless you consider Seattle and Portland not big cities what you say isn’t true. The entirety of the west as well.
As a civilian worker I've ridden along with cops in SF. A few decades ago on a first ride through a ghetto they advised me to slouch down in case someone took a pot shot at them from the surrounding low income housing areas. There was a bit of fear in them. A neighbor cop behind my house got murdered in the ghetto by a gunman maybe a decade ago. That ghetto has since improved from the hellhole it used to be. But yes, every city has it's bad area where you watch your back.
Heck....even small cities have area’s that you better have your head on a swivel.