Our crisis of collective self-doubt has reached unprecedented levels. The number of Democrats who declared themselves “extremely” or “very” proud to be American was a whopping 88% in 2004, even as the Iraq War was becoming more divisive. It was 85% as recently as 2013. By 2022, the number had dropped to just 65%. Remarkably, that figure fell to just 36% this year, the sort of rapid drop that might otherwise make a pollster doubt her results. But the numbers are real, and they point to something