There’s also a complete contradiction in how these people see children. Children are not an individual issue, as if the only input they get is from their caretakers. They are moulded and shaped by society like everyone else, and a society that teaches them that being a normal kid is wrong because it inconveniences adults actively harms everyone. So by even thinking children can behave in ways they physically can’t – their brain isn’t even developed for Christ’s sake – by making the individual choice to belittle or shame children for being kids, these individuals actively make society worse, thereby continuing the cycle of sickness.
I’d bet in many cases that people who resent children existing are actually resentful they weren’t allowed to be children.