You may or may not heard of this story before but here it goes;

There are two tribes, tribe Alpha had 100 men and only 10 women while tribe Delta had 10 men and 100 women. The conventional wisdom states that because tribe Delta has so many more women, they could produce way more children and within twenty years vastly dominate the Alpha tribe who could only produce 1/10 as many children.

I thought about the story and came to a different conclusion; instead of waiting twenty years and allowing the Delta tribe to outnumber them, the Alphas should immediately attack the Deltas as at this time, they have the superior MANpower needed to kill all the Delta men and keep the Delta women for themselves.

The lesson you can take from this is that while women are seen as valuable due to being walking baby factories, it is the men make the tribes viable and if or when society collapses and men are needed to build it up again, remember to never again give women any rights without making it legally certain they follow through with the corresponding responsibilities those rights give.