Get rid of cars in town and city centers. Then you're halfway to the solution.
Now, if we could just get cities to keep their light pollution within the city, it would be a nicer world.
Speak for yourself. Humans are fundamentally social creatures.
It's the opposite of that. Fundamentally, people do want to be around each other and need to be or they go insane.
There are exceptions, of course, but they don't represent the norm.
Thats why NYC is empty.