The main reason pro-gun people and anti-gun people can’t talk to each other is that their respective rhetorics are based on two irreconcilable worldviews. The anti-gun people are essentially collectivist; the pro-gun people are essentially individualist.
Individualists have a pretty good understanding of the collectivist worldview. It isn’t difficult for most pro-gun people to perform a convincing imitation of the anti-gun argument. Anti-gun people, on the other hand, seem genuinely incapable of understanding pro-gun arguments, and end up arguing against strawmen tainted by their own collectivist ideology. This leads me to believe that collectivism is an intellectual crutch for those who can’t make sense of individualism.
Explaining Irreconcilable Worldviews Between Pro-Gun and Anti-Gun Activists
This has also been attributed to “Randy Caudie”. See for example here.
[I have nothing to add.—Joe]