Overseas the end results if the police are totally defunded or weak is that you tend to end up with really strong differences / ghettos around places where there is and is not security.

It's like gated communities on steroids, but starts to include office, mfg and other items like retail (which totally leave places with no security). Can result in shocking differences on both sides of the fence that usually separates these areas. Ironically the police then tend to follow along and provide better security to what are not better areas (if they have any capacity).