Edit: as discussed below, this is an incorrect interpretation of her comments
Wasn't she saying that the child-rearing practices were a net good?
She talked about preparing men to be the solitary guardian with the rifle and women to take the lifeboat seat at the cost of her beloved's life. I thought she was saying the sex-based child-rearing techniques (like being more attentive to female than male crying) advanced that goal.
From my point of view, no child-rearing advice should suggest treating babies less than a year old differently based on the sex of the child, UNLESS the advice is about diapering.
Wasn't she saying that the child-rearing practices were a net good?
No. She said it was what we used to need. Her entire video is about how little we value male life and we indoctrinate males to sacrifice themselves for others.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.