Science is revealing why American politics are so intensely polarized

ATKINSON, N.H. — They stood in line for hours, in steady snow that became steady sleet, to hear the leader of their tribe.

Fresh from a major victory in Iowa, former president Donald Trump was scheduled to speak at 5 p.m. The parking lot at the country club opened at 10 a.m. The doors opened at 2 p.m., and hundreds of people were already in line. When everyone finally got inside, most had to stand tightly packed for hours more until the snowstorm-delayed candidate finally arrived just before 7 p.m.

It’s not always logistically easy being in the Trump tribe, but people stuck it out — and when instructed to turn around and express their sentiments directly to the news media, they dutifully booed and raised middle fingers.

The antagonism that Trump supporters feel toward the media is a small piece of a broader political and cultural phenomenon. This country, though politically fractious since its founding, is more polarized than ever, the rhetoric more inflammatory, the rage more likely to curdle into hate. It’s ugly out there.

As the 2024 primary season revs up, and with the political stakes this year extraordinarily high, voters are both polarized and hardly budging. Pundits expect another close election that’s a repeat of 2020. There’s not a lot of wobble on either left or right.

Social scientists have taken note of these hardening political divisions, pumping out academic articles and books that add data to what appears to be a steady rise in tribalism.

One theme emerges in much of the research: Our politics tend be more emotional now. Policy preferences are increasingly likely to be entangled with a visceral dislike of the opposition. The newly embraced academic term for this is “affective polarization.”

“It’s feelings based,” said Lilliana Mason, a political scientist at Johns Hopkins University and author of “Uncivil Agreement: How Politics Became Our Identity.” “It’s polarization that’s based on our feelings for each other, not based on extremely divergent policy preferences.”

The tendency to form tightly knit groups has roots in evolution, according to experts in political psychology. Humans evolved in a challenging world of limited resources in which survival required cooperation — and identifying the rivals, the competitors for those resources.

“The evolution of cooperation required out-group hatred. Which is really sad,” said Nicholas Christakis, a Yale sociologist and author of “Blueprint: The Evolutionary Origins of a Good Society.”

This is just as true on today’s political stage. There are two major parties, and their contests are viewed as zero-sum outcomes. Win or lose. The presidency is the ultimate example: There are no consolation prizes for the loser.

No researcher argues that human nature is the sole, or even the primary, cause of today’s polarization. But savvy political operatives can exploit, leverage and encourage it. And those operatives are learning from their triumphs in divide-and-conquer politics.

The case of the warring Boy Scouts

People are instinctively prone to group identification.

“We wouldn’t have civilizations if we didn’t create groups. We are designed to form groups, and the only way to define a group is there has to be someone who’s not in it,” Mason said.

Experiments have revealed that “children as young as two will prefer other children randomly assigned to the same T-shirt color,” Christakis writes.

What’s most striking is that in the process of defining who is in and who is out of a group, enmity and derision can arise independently of any rational reason for it.

Mason and Christakis point to a famous-among-academics experiment from 1954. Social psychologist Muzafer Sherif took 22 Boy Scouts and separated them into two groups camping at Robbers Cave State Park in Oklahoma. Only after a week did they learn that there was another group at the far end of the campground.



This article was originally published by a www.washingtonpost.com . Read the Original article here. .

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