sectarianism       
noun [ U ]  disapproving uk/sekˈteə.ri.ə.nɪ.zəm/ us/sekˈter.i.ə.nɪ.zəm/
 宗派主义
very strong support for the religious or political group that you are a member of, which can cause problems between different groups
  Sectarianism has always been one of the prime causes of conflict in Northern Ireland. 宗派主义一直是北爱尔兰存在冲突的主要原因之一。 
 See: sectarian
 - More examples
 - Sectarianism was a problem before, as it is now, but the bombing was a catalyst for increased sectarian violence.
 - They have destroyed everything with their sectarianism and politics.
 - The U. S. intelligence community has called the government dysfunctional and riven with sectarianism.
 - claims not only of jobs favouritism but accusations of sectarianism and abuse of power