If you’d like a non-religious example of a divide where each side’s common sense sounds like lunacy to the opposing side, try Scott Alexander’s Survive vs Thrive model of political divides. (In brief: do you think the world is pretty stable, and we’re figuring out how to best share this lasting prosperity, or do you think the world is teetering on the edge of near collapse, and unless we’re very careful, everything will crumble).
Survive vs Thrive has become one of the background assumptions I automatically ask about when I’m in a dispute with someone I already know and respect. It’s turned out to be lurking behind a lot of the disagreements I’d find most repulsive or hard to debate — my interlocutor is usually much farther toward the “Survive” end of the spectrum than I am, and is ready and willing to do last ditch things. (When I turn out to be the closer-to-Survive one, the Thrive person tends to feel to me like a Jenga player who hasn’t heard of gravity).
Source: Christian Ethics: If you understand, I’m explaining wrong…