Technically speaking, market demand for the production of a commons(institution) that creates natural rights of appeal for defense before an insurer of some sort (court), demonstrably exist. The market demand exists. Sure. Like any commons, markets succeed or fail at producing them.
As far as I know, the only natural right that is possible is reciprocal insurance of sovereignty against trespass(imposition of costs upon our demonstrated interests), in life(mind, body, family), liberty (privacy, movement, action, word, display, association, cooperation, production), estate (demonstrated interest, several property, share property, common property, capital), and defense (security, of life, liberty, estate).
So Natural Rights: “Reciprocity in Sovereignty, Life, Liberty, Property, and Defense” created by “An insurer to whom one can appeal for restitution, prevention, punishment of offenders.”
Lock didn’t get it right unfortunately.
We can further enumerate each of these rights in order to prevent others from attempts to usurp them through sophistry and deceit.
The declaration of human rights contains a lot of nonsense like ‘dignity’, mostly duplication, and at the end, impossible aspirations that cannot be construed as rights,