I was just reading about Amy Adams on Wikipedia and found out that her parents divorced when she was 11, despite belonging to the Mormon church which places a heavy emphasis on family togetherness (heavier than other religions).
While scrolling down to the bottom of the entry, I expected to see one of those offbeat Wikipedia category tags, like "Mormon children of divorce." Alas. But they didn't even have a generic category tag like "children of divorce," "father-absent people," etc.
They have a category for adoptees, something that most folks reading a person's biography would be interested in knowing. And something that could have shaped the way they turned out as adults. Adoption puts a happy face on the category of "unusual family structures," though. Things looked hopeless for the kid at first, but then they were rescued. Pointing out everybody who went through the opposite — things looked cheery at first, but then it all fell apart — would be a downer.
Wikipedia has all sorts of other category tags about a person's background and upbringing, from ethnicity to religion to being a military brat (like Amy Adams). That's the good kind of diversity — in the Wikipedian's mind, no ethnicity or religion or parental occupation is better than any other, so what's the harm in pointing it out? But whether both your parents were still together when you were going through adolescence... well, we don't have to air everybody's dirty laundry, do we?
And it is becoming "everybody" — see this earlier post about the still-rising rate of children growing up in broken homes.*
However, conveying how fucked-up the world is becoming, and pointing out who specifically has been hit, would go against the prime directive of the neutral point-of-view. You can read about it on a case-by-case basis, and assuming you soak up thousands of articles about living people, the pattern might strike you.
But there will be no larger picture that an abstract category tag could clue you in to at the outset. And no firm sense of there being this whole category of people out there, without a concise tag to reify them as a group. Some things were not meant to be understood, even (or especially) through The Free Encyclopedia.
* The trend for divorce is not the same, and has been declining since a peak circa 1980. But the rosier trend for divorce ignores whether or not there are any children involved, and married couples aren't pumping out babies like they used to. The divorce of a childless couple does not leave a broken home.