I have sympathy to a degree, but I think some of the people whose anecdotes she tells have got too hung up on "having to" have done x, y, and z (established a stable career, married, and most of all bought a house) before having a baby. Of course you don't have to do all, or in fact any of those things in order to have a baby
Loads of people do all 3 yet it all goes pear shape and they are renting, divorced and starting an entirely unconnected new type of work more manageable around children, by the time the children are a few years old.
The best laid plans and all that.
I think the experience of the Baby Boomers has created a false ideal - they are pretty much the only generation who (taken as an average) have had "it all" and also retired at 55 in the "forever" home they bought at 28 for a manageable on one salary mortgage...
Those who are now very old experienced a whole raft of problems, just like those currently of child-bearing age.
People need to ignore the unsustainable, unrealistic "blip" of a largely free ride that many (not, of course, all) of the baby boomer generation had and remember that all the generations before and since are similar, and the human race didn't die out when things were harder before...