I often wondered why is it that, given the fact that libertines are essentially a sexual minority, and that they organize themselves in swinger circles, that libertine reducts seemed virtually impenetrable. The answer is obvious (but I never arrived at it, explicitly): the taxonomy of male heterosexual libido, in proportion to the demand for it, makes it so that male heterosexual libido is essentially expendable. That is the case since women libertines are an infinitesimal minority. It's the economic analogy of supply and demand all over again. In fact, swinger communities need to be guarded, and restrict access to excess heterosexual male libido.