Most political positions are really about group membership and we want to read things that re-affirm that we belong to those groups. The easiest way to do this is to attack some "other".
This is a platitude that gets parroted way too often. It's like saying the highest function of humanity is eating and shitting
The point of a political position is catalyzing political change, developing consensus, and holding interest groups accountable. Reducing news or politics in general to sensationalism just encourages disengagement