sectarianism
Refers to excessive attachment to a particular sect or faction, often within political or religious groups.
The organization fell into sectarianism and split apart.
Used for narrow-minded focus on one's own section or department within an organization, similar to セクショナリズム.
See also: セクショナリズム
When sectionalism is strong, cooperation between departments becomes difficult.
Compound of セクト (from English 'sect') and 主義 (principle, -ism).