Print up a bunch of money, and the value of money is almost sure to decline. Make up a host of new rights and the value of rights is likely to plummet as well. As our modern experience demonstrates.
Simplifying, we might imagine three stages in the devaluation of rights. In stage one (which, like the “state of nature,” probably never quite existed), a right would be categorical. If you have a right to freedom of speech, say, this would mean that you can say whatever you want (at least within the scope of the right’s coverage) and the government cannot sanction or restrict you. Period. Justice Black sometimes talked as if freedom of speech were or should be an absolute right. The average lay person may sometimes think this is what a right means.