Once people internalize their leader’s propaganda, it doesn’t matter when pieces of it are proven to be lies, because it has become central to their identity. As a strongman becomes more and more destructive, followers’ loyalty only increases. Having begun to treat their perceived enemies badly, they need to believe their victims deserve it.

But when the only available options are black and white, it’s natural to slip into a mentality of us versus them and to focus on the sides over the science. For those on the fence, when forced to choose a side, the emotional, political, and economic pressures tilt in favor of disengaging or dismissing the problem.