Have some sympathy for them.
Far as I can gather reading their story, they were victimized by religious emotional abuse at a vulnerable time in their lives (they were very young when Michelle miscarried the first time, and some dipshit doctor basically told them they were being punished by God for the sin of using contraception).
They believe a lot scarier things than just having a lot of kids. Look up "Titus 2 Wives."
I grew up in an environment kind of like that. Those kids aren't well-behaved all the time because they're all NT (who knows if they are or not?? who actually cares??). Those kids are well-behaved because they believe to their bones (having been taught nothing else) that they'll burn in Hell forever for displeasing God if they have a cross day. Michelle says the s**t she says because she chooses to believe that being grumpy, expressing frustration, telling Jim Bob "NO!" are all failures of her divine duty as a woman.
Taking things too literally, seeing parts rather than the whole, going too far with individual details...
...hmmm, who do we know that's prone to that kind of behavior?? It was probably Aspies made up the Quiverfull/Titus 2 schtick to begin with.
Like, Hitler was probably an Aspie.
Incentive to be careful, yesno???
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"Alas, our dried voices when we whisper together are quiet and meaningless, as wind in dry grass, or rats' feet over broken glass in our dry cellar." --TS Eliot, "The Hollow Men"