I do remember parenting at that age, but I think a big difference in my experience is that I was lucky enough to have plenty of happy baby snuggles (and my God, the amount of bibs he went through, he was a perpetually soggy child, it felt like- we were going through a load of just his bibs daily! Very soggy baby snuggles.) and the awareness of shaken baby syndrome. I think I did a real number on myself, obsessively reading about the health outcomes and how the grief ripped families apart.
So even when his colic made me want to gouge my ears out, or I was frustrated and exhausted after pacing the landing with the baby in my arms for hours at end, I was always able to set him safely into his little bed and have a cathartic screaming/crying session out in the hallway, rather than ever risking harming him.
I was always pretty solid in the fact that I would refuse to ever endanger him, though this fed into strange obsessive behaviour like holding my breath while watching him breathe for the crippling fear I would inexplicably suck all the air out of the room and suffocate him like an absolute monster- sleep deprivation wrecks havoc on your addled brain.
I could see, however, in a parent who was less assured of their self control how this could be frightening, though. Or one who isn’t able to have those softer moments to compensate for the agony of late night screaming to the point of vomiting all over you and into your mouth- that was deeply unpleasant. Personally, the stakes were always so high, and so anxiously in the forefront of my brain- that I would rather kill myself than bring him to harm, that that particular fear never entered my headspace. But on reflection- yes, that does elucidate the potential horror in this piece more clearly. Much to think about.