Guilt-tripping someone who shares that they're not always having a good time as a parent is not cool. Your comment is over-generalizing, and IMO quite mean.
Childcare is easier when you have a group of adults taking care of a group of kids. And of course, parents have the primary responsibility, but it is not a 24 hour duty.
The upshot is that we have to do everything we can to give our children more of our time; we aren't a desperately poor society, we can do more. We have wandered far from our "species essence" and now wonder why so much is going wrong.
Anthropology studies past societies as much as modern ones, although the evidence is thinner.
https://ourworldindata.org/parents-time-with-kids
I don't think nomadic parenting time is really a useful comparison.
It's not that my kids never are unruly. But I can almost always track it down to some failure from my side. I was too busy with something, or simply distracted, so I forgot to give them their snack in time, or they got to bed too late the day before, or I didn't pay attention when they tried to tell me something they felt was important, etc.
And while I'm aware that my experiences aren't universal. The opposite notion that I often hear that tantrums are some kind of unavoidable natural disaster is even more absurd. Yeah, if I bring my kids to the store at 5pm to buy dinner without giving them any snack, while I'm hangry yourself, stressed, and trying to think of something not horribly unhealthy to eat, they might end up screaming on the floor in front of the candy shelves. But my thought then isn't "why am I cursed with such horrible kids". My thought is "ok, I screwed up today, because this was predictable and preventable, and by now I certainly know better than putting ourselves in situations like this."