With few options, many of those remaining in the cities build their lives around crime. Their targets become those with the wealth. They make forays into the once-placid countryside. The techno-elite become obsessed with security. Yards become walled compounds.
Urban design puts a primacy on streets that can entrap intruders.
Armed private-security firms boom. Polarized, the two cultures clash. They are beyond rapprochement. A form of techno-separatism emerges. That's the grim science-fiction paradigm found in many contemporary cyberpunk novels.