党同伐異
Meanings
1
narrow partisanship; factionalism
A yojijukugo describing the tendency to side with one's own faction and attack those who differ. Often used in political or organizational contexts to criticize blind loyalty and exclusion of outsiders.
Politics driven by narrow partisanship loses the public's trust.
That organization has a strong tendency toward factionalism, making it hard for new ideas to be accepted.