> the world has changed, mostly for the better
Yeah, maybe. There have been a few analyses on this topic, and depending on the source, the live-in boyfriend or stepdad is somewhere between 2 and 8 times more likely than the biodad to physically or sexually abuse the kids.
If you're going to divorce the father in order to "find yourself" or whatever contrived excuse you need, you should at least take a vow of celibacy or something.
I find that's a central part of the article, that societal pressire for men to look after their children is lacking. And they don't on their own measure up. There's no easy answer, and telling the mothers they are responsible for absentee fathers is too easy a take.
I don't think the evidence bears this out. It's often the mother's lawyer optimizing her post-divorce income (via child support) by agitating for as much of the custody split as possible, in a family court system that is systemically biased against fathers being awarded custody. I will edit this with citations if I find time later.
The law cannot help it that there are so many bum men. This article is about that. Whether or not low expectations are the reason remains to be seen, but there is an epidemic of worthless bum men.