Why You Hate the Other Side (And What It Says About You)

Be honest. When you see someone wearing the other side's bumper sticker, what's your first thought? Is it "I respectfully disagree with their policy positions"? Or is it something closer to "What is wrong with that person?"

If it's the second one, you're not alone. And you're not a bad person for it. But that reaction is telling you something important — and it has almost nothing to do with politics.

The feeling has a name

Political scientists call it affective polarization — the tendency to dislike, distrust, and even dehumanize people who belong to the opposing political party. It's not about disagreeing on policy. It's about feeling genuine hostility toward people based on their political identity.

And it's gotten dramatically worse. In 1960, about 5% of Americans said they'd be "displeased" if their child married someone from the other party. By 2020, that number was over 40%. We're not just disagreeing more — we're increasingly disgusted by each other.

It's not about what they believe

Here's the counterintuitive part: research from Lilliana Mason at Johns Hopkins found that affective polarization has increased even as actual policy disagreements between ordinary Democrats and Republicans have stayed relatively stable.

Read that again. We don't hate each other more because we disagree more. We hate each other more because our identities have become more tied to our political teams.

Politics used to be one part of who you were. Now it's increasingly fused with your race, your religion, where you live, what media you consume, what car you drive, and what food you eat. When someone attacks your political "team," it feels like they're attacking everything about you.

What your hatred actually reveals

When you feel contempt for the other side, your brain isn't doing political analysis. It's doing something much more primitive: threat detection.

The amygdala — the part of your brain that processes fear and aggression — activates when you encounter political disagreement the same way it activates when you encounter a physical threat. Your body doesn't distinguish between "this person wants to defund the police" and "this person is a danger to me."

This means your political hatred reveals your emotional activation level — how strongly your nervous system reacts to political stimuli. Some people can discuss immigration over dinner without breaking a sweat. Others feel their blood pressure rise at the mention of it. Neither response is wrong, but knowing where you fall on this spectrum is essential for understanding your own political behavior.

Your hatred also reveals your identity fusion — how much your sense of self is wrapped up in your political tribe. The more fused your identity, the more any political disagreement feels like a personal attack. And the more it feels like a personal attack, the more hatred you feel.

The cost of the hatred

Political animosity isn't just unpleasant — it's expensive. It costs you relationships. Research shows that Americans are increasingly unwilling to date, befriend, or work with people from the other party. Families are fractured over Thanksgiving dinner. Neighborhoods self-sort. The social fabric thins.

It also makes you dumber. When you hate the other side, you stop evaluating their arguments on merit. You dismiss everything they say because of who's saying it. This means you miss good ideas, ignore valid criticisms of your own side, and make worse decisions — all while feeling absolutely certain you're right.

And perhaps most importantly, it makes you manipulable. Politicians and media figures on both sides have learned that stoking your hatred is the most effective way to get your attention, your engagement, and your money. Every time you feel that surge of contempt, someone is profiting from it.

What to do about it

You can't eliminate the feeling. It's wired too deep. But you can change your relationship with it. Here's how:

1. Measure it

You can't manage what you can't measure. Most people dramatically underestimate their own animosity. They think they're "just passionate" or "just paying attention." Getting an actual score — a number that reflects how much hostility you carry toward the other side — is the first step toward doing something about it.

2. Separate identity from opinion

Practice holding your political views as opinions rather than identity. "I think universal healthcare is good policy" is an opinion. "I'm the kind of person who supports universal healthcare" is an identity. The first can be updated with new information. The second has to be defended at all costs.

3. Consume the other side's best arguments

Not their worst. Not the cherry-picked clips designed to make them look stupid. Find the most thoughtful, reasonable articulation of the position you disagree with and sit with it. You don't have to agree. You just have to understand.

4. Notice the profit motive

Every time you feel that surge of hatred, ask: who benefits from me feeling this way right now? If the answer is a media company, a political campaign, or a social media algorithm, you're being played. The hatred is the product, and you're the customer.

Find out where you actually stand

Common Ground measures your cross-aisle animosity index — a score that tells you exactly how much hostility you carry toward the other side, and how it compares to the average American. You'll also get your emotional intensity score, your ideology across three dimensions, and your bridgeability rating.

It takes about 15 minutes. It's free. And it might show you something about yourself you didn't expect.