Pedantry about spelling on a message board will certainly save the republic. Just like literacy tests protected voting rights.

The constitution enshrined the diminishment of blacks' humanity, had to be ammended to extend the franchise to women, and still says that slavery is fine under the right circumstances. It's as much a reflection of our failings as it is our ambitions, and has been wielded violently to uphold or change the status quo. It has no inherent trajectory towards progress other than the one we actively embody.