exclusivism
Noun
Meaning
The act or practice of excluding being exclusive; exclusiveness.
Source: Webster's dictionarySynonyms
Examples
[In-group exclusivism has] killed more human beings and destroyed more cities and villages than all the epidemics, hurricanes, storms, floods, earthquakes, and volcanic eruptions taken together. It has brought upon mankind more suffering than any other catastrophe.
Pluralism is denied logically; inclusivism is denied scripturally, and that leaves us with exclusivism... you have to know that Jesus died and believe in it in order to be saved.
The contradiction between Christian exclusivism and true liberalism is seldom discussed openly and perhaps even privately.