"Experts?"

The "experts"
...contend children who are raised by both parents are more likely to succeed in school and, later in life, more likely to go on to college and land higher-paying occupations and professions as opposed to children who experience their parents separating or divorcing, or who are raised by a single parent

My parents never divorced and stayed together, yet look at how fucked-up I turned out.  
Of course frequent knock-down fights and financial difficulties DO still manage to have their impact on the domestic climate, don't they?

The "experts"
...contend children raised by parents who are well-educated have a better chance at academic achievement than children raised by parents with little or no education

My parents were college drop-outs but were musicians who also worked various unrelated odd jobs
...and I'm a high school drop-out with a G.E.D. who could never finish even one quarter of any 2-year college curriculum, spent most of my life working minimum-wage jobs in between bouts of homelessness

The "experts"
...contend children brought up in lower-income environments are the ones most likely at risk for experiencing domestic abuse or witnessing spousal abuse between their parents

I remember a news story from years ago about a prominent physician from a prosperous Jewish neighborhood in the New York City area who was facing trial on multiple domestic abuse and felonious assault charges stemming from years of routinely viciously battering his wife and children---in addition to subjecting them to extreme emotional abuses.
So much for financial, academic, and marital status being reliable barometers for determining a child's potential outcome in life.

The "experts"
...are experts at pigeonholing everything and everyone, and at patronizing whatever the current trendy narratives happen to be at the time.