To have a safe society, you need to either have lots of surveillance, so people know they are being watched and will think twice about committing crimes (countries with very string gun laws like England and Australia have very strong surveillance systems in place) or the ability for anyone to defend themselves legally against said criminal.

When you try yo get rid of both guns and surveillance, it only increases the crime rate and hurts innocent people.

Very large cities like New York and Chicago are seeing this in action right now. Police are either quitting, not working, and are being defunded as we speak. New york and Chicago had record crime rate increases, including murder.