Neo-Tribalism
Neo-Tribalism is the ideology that human beings have evolved to live in a tribal, as opposed to a modern, society, and thus cannot achieve genuine happiness until some semblance of archaic lifestyles has been re-created or re-embraced.
More Information
See the excellent Wikipedia article, at http://en.wikipedia.org/wiki/Neo-Tribalism
Daniel Quinn's book Beyond Civilization and podcast Beyond Civilization - The New Tribalism