This guy must've been a great guy to be around. I just can't imagine him ever being single... 
I really wonder how anyone can really believe such a thing... that takes a special kind of trauma, I think. I doubt it's as simple as his own parents treated him that way, so now he's justifying it, it's got to be more complex than that. I bet these assertions are based on personal prejudice, he says "we rarely see a happy child", and this is proof that motherly love does not make a child happy. It is from that point on that we can see how the rest might seem to make sense, once we accept that initial "fact". But how can a healthy mind be made to believe such nonsense, something so obviously wrong?
Surely he must not have been a very happy child, so everything he saw in children was a reflection of what he saw in himself. If he saw a child smiling, they were being spoiled and would not be functional adults. A laughing child was immature. A crying child was not learning how to properly deal with pain. We're all broken robots. I wonder if this is the same type that is drawn to determinism? Ah, too much speculation now, but it is interesting to psychoanalyze these kinds of people.