That doesn't take into account the fact that (through no fault of their own, and meriting no shame), single parents are pretty systematically worse statistically than bioparents in a nuclear household. Take into account the impact of parental "abandonment" on the child, which is traumatic regardless of whether the abandonment was voluntary or not, and regardless of whether it's one parent no longer seeing a child at all, or the other parent seeing the child less because she has to work harder to provide; both count as "abandonment" emotionally, and can be traumatizing.

Single-parent families, step-families all require better parenting, management, and communication skills, since they're more complex, and these parents aren't more skilled than the average, with predictable consequences.

Check the statistics on "fatherless" households, children of single mothers perform worse on every single metric. Worse academically, commit more crime (and much more rape), more runaways, more addictions, the list goes on.

> Yes, old school partnerships are dying, but that doesn't make males more disposable.

Implies that "old school partnerships" are dying, but being replaced by something new. That's not the case. It's not a case of old-thing-evolving-into-a-new-thing. It isn't being replaced by anything, just being destroyed. I'll bet you single mothers are much less happy than married women, especially in their 50s and 60s, not to mention the increased likelihood of being abused by dates, strings of failed relationships, increased stress, and loneliness.