Human beings don’t want controversy, they need it. They need it because it assists the brain in defining “what it is” and where it “feels comfortable” in the world.
Controversy presents “the other” whereas what we already think can oftentimes remain in question. Having controversy and choosing a side to stand on assists one in defining the self. The current political controversies are not only necessary, they are needed.
This is why “where we stand on an issue” creates such unmitigated passion. It is the one thing that establishes who we are among others in the world. No matter how absurd or outlandish (think religious and political ideas) the idea is, it’s ours.
Therefore, the greater the size of the group amassed around an idea, the greater the feelings of worth and accomplishment within the brain. Establishing who we are within the world while bringing worthiness within a larger people group, will drive an individual to either fight with vehement fury or duck and hide until a winner is revealed. Like a submarine, they will likely surface silently within this new established people group.