A strong case for Anna Karenina principle

I have been an antinatalist for a long time now. And NO. This post is not about every aspect of antinatalism* but just one - the scope of the Anna Karenina principle.

All happy families are alike; each unhappy family is unhappy in its own way

Anna Karenina principle

The above point is often used to justify antinatalism. The fact that everything in life needs to be somewhat right to be happy but even if one thing goes significantly wrong, happiness can be stolen away provides a strong case for antinatalism. Because it is statistically more probable for one thing to go wrong than everything to go right implying the unborn child is potentially exposed to misery. Essentially, happiness is not only not certain but less probable. Though, I knew this for long, My friend recently shed some light on the scope of this point. He compared the lives of animals and humans in the following way

1) Non - Sentient beings - We can keep them out of the argument as the question of happiness, pleasure, suffering is not applicable to them as we conceptualize.

2) Sentient Animals - 

          a) Wild animals - If you take the life of wild animals, apart from the difference between dying and living, there is hardly any difference between the kind of life different individuals lead. Any deer eat the same food, live in the same habitat, have the same predator etc etc. Some get to mate while some don't but the point is, there is not so much of a difference between the lives of different individuals.

       b)Domesticated animals - There exist some difference in the kinds of life led by a domesticated animal versus a non-domesticated animal. For example - a street dog has to fend for itself while a domesticated one gets fed. Nevertheless, the difference is not as exacerbated as humans

3) Humans - Just see the difference in life led by the royal family of England versus a sex worker in an Indian brothel or a teenager in a terrorist camp in Afghanistan. Look at the range of illnesses - physical and mental that can inflict humans. The extent to which social, political, and economical, injustice exists is mind boggling. What about religious persecution, racism, casteism, marginalization, gender oppression, poverty?  I can go on and on and on but you get the point. 

Though I knew the range of things that can go wrong in humans, contrasting with animals made me appreciate the scope of Anna Karenina principle in humans. I reiterate, the life of a royal family member and a sex worker in a third world country is astronomically apart. 

* If you are interested in different aspects of antinatalism like ideological and practical grounds, the below links are excellent reads

https://philpapers.org/go.pl?id=LICTIO-2&aid=LICTIO-2.1 - Ideological

https://www.newyorker.com/culture/persons-of-interest/the-case-for-not-being-born - Practical