Diversity is not strength. Whether it is terrorism, crime or lost and found, a homogeneous society is where society works for all its citizens. In Japan as usual, a prosperous and safe country is easiest built on a homogeneous society; diversity brings “Bowling Alone” and frequent terrorism among the social ills that destroy a community.

Homogeneity brings social cohesion, honesty, safety, and lost items returned to you.

The most important aspect of the story goes unmentioned; the Japanese police have so little to do they can concentrate on processing lost items of little value such as umbrellas and sunglasses. Think about this for a minute. The Japanese police don't have to deal with much crime, they don't have to deal with terrorism, they don't have to deal with a crime plagued underclass, and they don't have to deal with illegal alien criminals. They can actually try and serve the Japanese people by recovering and holding lost items.

And this is part of a deliberate policy of reinforcing honesty that starts with young children, instead of a policy of inculcating self-esteem and diversity ideology. It's a policy directly related to the high IQ of the Japanese people. Smart people make smart decisions.