Carrol Quigley, author of The Evolution of Civilizations posits that a civilization is defined by its Instrument for Expansion, concerning that civilization was enabled by communities with a surplus of time and wealth. By instrument of expansion, Quigley suggest that three things be true: 1) the society must be organized in such a way that it has an incentive to invent new ways of doing things; 2) it must be organized in such a way that somewhere in the society there is accumulation of surplus--that is, some persons in the society control more wealth than they wish to consume immediately; and 3) it must be organized in such a way that the surplus which is being accumulated is being used to pay for or to utilize the new inventions.

Far from it that a Universal Empire is a symbol of a strong civilization, one where institutions are in total control and exerting an authoritarian doctrine, the Universal Empire, Quigley posits, is the 5th stage in the life of a Civilization, and a tell-tale sign of its decline. Civilizations begin through the process of 1) a Mixture of cultures, 2) the Gestation of those cultures and 3) the Expansion of the civilization. During these processes in which a civilization can be said to be expanding, the members of the civilization are most chaotic; rules are more flexible, there may not even be concrete language, and the institutions being formed exist for the benefit of the people, until, inevitably, the institutions become more concerned towards their own goals and continuation. In effect, if people were less vested in their own self interests (forming institutions that benefit those in power) then civilizations would last much longer and would not die out (but may be mixed with new populations).

While it may be true that human institutions, such as marriage, have been conducive to the survival of the species in the past, we are far from being able to say that "enforced monogamy is the bedrock of Western civilization"--according to Carrol Quigley, capitalism and the various industrial revolutions have been the bedrock of Western civilization as our instruments of expansion, and his research I trust because he has closely examined the history of civilizations. It would be more accurate to say that a Universal Empire may benefit from enforced monogamy, and yet a Universal Empire is an indication of the decline of a civilization.

Human sexuality exists for a reason; if it were true that other forms of sexuality other than monogamy were traits that inherently lead to the collapse of human nature then those traits would have been weeded out a long time ago--but instead, rather, they exist for a reason. They continue to exist, and there is no saying that our society and our people wouldn't be altogether stronger for exploring love in the way that they see fit--in the twenty-first century we certainly don't need to encourage population growth as a means for protecting our people, and if we did then that would likely be a trait that resonated with us as a people. Instead, by allowing people who want to be parents to be parents, and allowing people who don't to explore love however they choose, we will be forming families from meaningful and authentic relationships, rather than relationships that are based on this lie of "needing to control people's sexuality to strengthen civilization", and our children will be stronger and happier for it knowing that they were born from parents whose love was true and that they weren't born simply because their society has imposed Draconian laws of punishing adultery. Additionally, peoples would be happier and more productive, and far more positive about their social structure which enables us to closer approach ideals of egalitarian rather than totalitarianism.

If we're talking survival of the fittest, then we can look to the Bible, whose chief character, Jesus Christ, is the most widely renowned character in the world--and he is known for being a martyr who accepted his unjust death at the hands of the Romans with grace. He is also known for forgiving adulterers and aiding prostitutes during an age where women were largely oppressed and looked down on--an age where women were punished for adultery, and in an age where men were known to possess any combination of wives, mistresses and slaves--and this is what you're touting as the "gold standard of civilized life" under the umbrella of "monogamy". While this may not be indicative of biological fitness, I believe that everything, whether it be a behavior, an idea, or even the shape of the cosmos, to exist within a paradigm of survival, so that only that which is fit to survive will ultimately survive, and it is from this perspective that we can look at figures such as the Buddha or Jesus Christ and say that it was not a warlord, but a pacifist who have become the most renowned figures of history.

Thus you get yoga practicing vegan office workers that fuck like whores (or otherwise fail to do so) and have about a million mental health issues. But I digress.

I think the hate that you're espousing here is largely the motivation for your condemnation of relationships that exist outside of a heteronormative paradigm. This person that you came up with is entirely fictional and says little about your own personal experience. By "whores" you're primarily referring to individuals apart of a sex trafficking industry that is primarily comprised of women who are forced by threat of violence by a multi-billion dollar industry run by men to meet quotas.

Freud was also known for his Seduction Theory, where he initially considered repressed memories of sexual trauma during youth to be the source of hysteria and neurosis in his female patients, but years later abandoned the theory at the criticism of his peers (a male dominated field) and instead reported these memories of sexual abuse were only imaginary fantasies. It wasn't until more recently that conditions such as multiple personality disorder have gained any semblance of scientific validation, as experienced by people who have endured such trauma as Michelle Stevens, the author of Scared Selfless.