The wisdom of crowds is a thing. https://en.wikipedia.org/wiki/The_Wisdom_of_Crowds?wprov=sfla1
Normally you avoid the craziest people (far right and far left) because they have mental issues.
Fast forward to today. The foreign actors give a loudspeaker and an army of sock puppet bots with the messages core to the far right and the far left. Voting and culture and consensus is dysfunctional as we try to recover the culture.
Propagandists try to make the center feel isolated.