What is the correct definition of macroevolution?
a. it is evolutionary change on a large scale often following major global changes and mass extinction
b. it is evolutionary change due to dominant modification that enriches a gene pool over very short periods of time
c. it is evolution change due to recessive modification that enriches a gene pool over very short periods of time

you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.

therefore, what enabled the old regime to maintain as long as it did was private property.