information:highlighting, linguistic:paraphrasing
Arguments from outside the scientific community

Karol Wojtyła (later, Pope John Paul II) in his book Love and Responsibility postulated that monogamy, as an institutional union of two people being in love with one another, was an embodiment of an ethical personalistic norm, and thus the only means of making true human love possible. Some writers have suggested that monogamy may solve the problems they view as associated with non-monogamy and hypergamy such as inceldom.

Alexandra Kollontai in Make Way for the Winged Eros argues that monogamy is an artifact of capitalist concepts of property and inheritance and wrote, "The social aims of the working class are not affected one bit by whether love takes the form of a long and official union or is expressed in a temporary relationship. The ideology of the working class does not place any formal limits on love." Later, "Modern love always sins, because it absorbs the thoughts and feelings of 'loving hearts' and isolates the loving pair from the collective. In the future society, such a separation will not only become superfluous but also psychologically inconceivable." One of the tenets of the new proletarian morality is "mutual recognition of the rights of the other, of the fact that one does not own the heart and soul of the other (the sense of property, encouraged by bourgeois culture)."