We are polarised.
We see it in the increasing radicalism of our political leaders, the return of the language of race, or of communism, the screeching rage of our conversations on social media, and the violence and incivility of our formal political discourse (Trump, Orban, Duterte, etc). We feel it too – tiptoeing around conversations we would have waded into: in Britain, our Brexit PTSD has taught us that arguing about ideas is often attacking someone’s sense of self.
And the research says the same, though to varying degrees in different countries (Britain is interesting here - see the shift from 2005 until today).