IMHO, this article is correct and very important. I was lucky enough to have a stay at home Mom while I was small and it meant stability and security as I navigated those first few years. Motherhood is the Most Important Job there is, along with Fatherhood.
I, too, was raised in an Age and in a family of Christian values, where a nurturer was available throughout the day and night. Four kids, all within 8 years. All productively working, no drug problems or other destructive addictions, no arrests or convictions, all at least nominally Christian.
My parents were hardly perfect, but held a level of values which transcended their faults.
I have to relate the results to the environment.