I agree, and will expand with this: Codified rights are effectively statements of belief of a government, to which they are binding themselves. As a statement

I agree, and will expand with this: Codified rights are effectively statements of belief of a government, to which they are binding themselves. As a statement of belief, there's no legal structures or arguments upholding them. They are simply installed by declaration (either dictatorially or by some measure of consensus) as an official part of the government's world view.