Earlier quoted context omitted.
As in, "In the past young men could look to the example of their fathers, who had well-paid automotive manufacturing / steel mill / electronics assembly jobs that allowed them to care for their families and even put a downpayment on a small home, but now they have no such examples and no such expectations of moving into that kind of position at adulthood." Okay, that's an expectation issue. Why is the author ignoring…
From what I've seen, there's an entire industry of conservative economists Like Arthur Laffer and Larry Kudlow (to name a mere two, there are entire billionaire funded thinktanks like AEI dedicated to this) to deny the reality of the issues you mention, not unlike scientists paid to deny Climate Change or Tobacco's cancer links. And because of this, conservatives don't even believe that such issues exist.
And given the remarkably higher income mobility of Asian kids raised in the bottom income compared to white kids, I think social liberals are sticking their heads in the sand by trying to hand wave away these social trends and blaming conservative think tanks.