western politics

What does one call a style of doing politics that only allows a state to interact with, engage in diplomacy with and have normal  business relations with states which exhibit beliefs, lifestyle and cultural norms that are the same as yours, even when this has no impact on the daily business of commerce and cooperation?
The answer is: SECTARIAN POLITICS. 

In terms of foreign policy making, pragmatism has died in the west, although there are some glimmers of hope that it may be resurrected under a Trump Presidency.
But in other areas, pragmatism bordering on cynicism is not only present in the west but omnipresent. However,  it is found virtually exclusively in the realm of domestic issues.