I do agree with you regarding the separation of social from the human. I think, mostly, that some people require more "alone" time than others. I require a lot. I really like people too much to really want to be strictly reclusive. It's just that I've worked with computers all my life. My interaction with people is that they always want something of me other than my social self. I know it is unhealthy and selfish. I'll get over it.
There is precedence for very reclusive behavior. It can be found in some of the east Indian religions. I think that might be a temporary situation for the individual. In the U.S., it is typically unheard of; unless the media is reporting very bad behavior of the individual. On the other side of the fence we would find brilliant people such as Henry David Thoreau (at least temporary), Emily Dickinson, J. D. Salinger.