Que entiendes por poblacion?

En biología, una población es todos los organismos del mismo grupo o especie que viven en una zona geográfica determinada y son capaces de mestizarse.

In biology, a population is all the organisms of the same group or species who live in a particular geographical area and are capable of interbreeding.

Explanation:

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.