What is "clannism"

Clannism is a prejudice based on clan affiliation. The most noted discourse around these occurrences and phenomena centers around Somalia and Somalis in general. Although Somalia is by and large a racially homogeneous society, with a common language, appearance, religion, an overlapping culture and a shared religious denomination affiliation, it is nonetheless a patriarchal society. This patriarchy has resulted in a culture wherein the paternal lineage of the average person has become among the foremost anthropological feature of day-to-day life.