Last week, I wrote a column arguing that liberals concerned about ongoing failures in the American experiment should consider socialist remedies. I knew there would be quite a bit of disagreement. And I knew that most — though, crucially, not all — of it would unfold in bad faith. What is bad faith? It’s a term coined by the philosopher Jean-Paul Sartre that means, in the helpful gloss of George Mason University anthropologist Roger Lancaster, when you tell a lie and you start to believe it, then forget it was a lie. In the argumentative context, engaging in bad faith...