If you read the article (!) you'll find its pretty much spot-on. Here's one example:
But what makes these schools truly ludicrous is their recent insistence that they are engines of equity and even “inclusivity.” A $50,000-a-year school can’t be anything but a very expensive consumer product for the rich. If these schools really care about equity, all they need to do is get a chain and a padlock and close up shop.
That could have been posted by anyone on FR and gotten kudos. The writer actually has a decent sense of humor:
These are fundraising events dedicated to financing a major school project: paving the locker rooms with gold coins, annexing Slovakia, putting out a hit on a rival headmaster.
Finally, there is the soft racism that comes with elite private schools...
the expectation that Black kids would be excellent athletes (and possibly weaker students); insulting assumptions about Black students’ family backgrounds; teachers repeatedly confusing the names of Black students; other students constantly reaching out and touching Black girls’ hair; and non-Black students using the N‑word.
...and the crux of the article, in an Instagram post ...
our kids are being taught terrible values: that hypocrisy and dishonesty are fine so long as you virtue-signal the right fashionable politics. And that those fashionable politics are basically meaningless—they are just for show, a way to make being privileged and wealthy truly guilt-free.
The Atlantic is an odd publication: it stumbles around in the leftist fog of wokism, elitism, and every other ism that stands against classical liberalism and good taste. But once in a while, a subversive mildly traditionalist piece gets published.
In a way, the same hope accompanying such a piece's publication is what propels Deplorables in the darkness of the Biden presidency*.
Folks should read more of Flanagan’s work.
I suspect they’d agree with a lot of what they read.
Perhaps if the claims made were only about Dalton. But the claim that private schools are indefensible implies that all private schools act like Dalton. That has not been substantiated, because it is not true. Thus the claim is NOT "spot on."