I can't help thinking that this 6% figure (non-neighourly attitudes) that Kevin has unearthed is actually quite low.
Surely there are a fair few people who will tell a survey that they do want to have contact with their neighbours, but that - in truth - that they actually don't?
In my line of work, I'm often tempted advise people that it is impossible underestimate people's willingness to interact with each other - and that people have quite elaboate avoidance strategies in place to help them keep themselves to themselves.
That the decline in neighbourliness is not just a factor of social atomisation, but that social atomisation has been welcomed by a substantial number of people who would claim to deplore it.
Digging around for any studies that would confirm or reject this prejudice is on my to-do list - but any pointers would be welcome?