Denominationalism

n.

1.

A denominational or class spirit or policy; devotion to the interests of a sect or denomination.

Noun	1.	denominationalism - a narrow-minded adherence to a particular sect or party or denomination; "he condemned religious sectarianism" Synonyms: sectarianism
	2.	denominationalism - the tendency, in Protestantism, to separate into religious denominations or to advocate such separations

narrow-mindedness, narrowness, sectarianism