It’s very weird to me that you’re only listing loud things children do… Like, have you ever been around a sleeping child? Do they bother you? What about in a classroom, watching a movie, or running in the distance (out of earshot)?
Average volume of a child is higher than adults, but only by a factor of 2 or so. And their noises are interpretable, you can definitely figure out what they mean, unlike the adult noises.
But I think blaming children for the fact that all people are unbearable is… idk, you’ve mistaken a symptom for a problem? Working on the general misanthropy is probably a better start?