#3 was our pickle. Because she shared a room with her older sister, we worried about her waking up #2. After a month of no sleep, we learned big sis can sleep through the tantrum, and the tantrums ended when #3 didn’t get her way. Granted, the tantrums started at around one year when she was weaned, not at he infancy stage.
The article is not about tantrums. It is about the systematic abuse of babies.