>relationships do not survive being ripped away from the spatial and temporal context in which they were cultivated.

Very true, but also very unfortunate. The best people (a teeny almost non-existent minority) are not like that.

>weakly social with everyone except our direct family and significant others.

For a large number of people, (say 50 %) I suspect this is not true. Especially when people move from rural to urban areas.