Jean Guerrero: Americans are terrified of other Americans. How to stop the polarization

A few months ago, I knocked on the front door of a house in El Centro while searching for Republicans to interview for a story. An elderly white man opened the main door of the house but left the screen door closed. I struggled to see him through the screen door's mesh. I told him I was a journalist hoping to learn about his political views, and that I couldn't see him very well. "That's the point," he told me.

He seemed angry. He said President Joe Biden was a "dumbass," adding: "We need to hunt down all