Earlier quoted context omitted.
Is the point of swearing to a document to signal your values? Isn’t it to make a promise to a higher power? If it’s not to make a promise to a higher power, and I’m not necessarily arguing this should be required, then there isn’t really a point.
i would argue that the (almost exclusive) point of swearing something publicly is to signal your values. otherwise why not just swear it to yourself?
But I still don’t think making a promise to some set of values that is not believed to have the capacity to enforce them makes much sense. Christians aren’t swearing an oath to Christian values - they are swearing to God. Obviously not everyone is religious, but that’s exactly why it doesn’t make sense to sub in some non religious belief in its place.