> Everyone agrees that property rights are important.
I think you will find not everyone agrees with that. Since well before Proudhon's "property is theft" (from "What is property?", 1840), there have been ideological arguments against property rights on the basis that the limit the liberty of the population as a whole. And while wholesale rejection of property rights is not common, it most certainly exist, and has a history pre-dating our written legal systems.
Well, those examples would probably agree that property rights were important in the sense of being an important subject, too... But maybe that was not what the previous meant.
I think you will find not everyone agrees with that. Since well before Proudhon's "property is theft" (from "What is property?", 1840), there have been ideological arguments against property rights on the basis that the limit the liberty of the population as a whole. And while wholesale rejection of property rights is not common, it most certainly exist, and has a history pre-dating our written legal systems.
Careful about generalisations.