https://medium.com/@meikestoverock/female-choice-evolutionary-sexuality-patterns-and-how-they-shaped-our-civilisation-d7969eed50a8

Disclaimer: Meike Stoverock is a controversial author who promotes RP talking points using biology. While I do not agree with her appallingly terrible prescriptions for how boys should be raised; my understanding of history, evolutionary psychology and sexual selection mostly aligns with what she describes above (except for dubious claims about sexual violence being linked to private property)

Question: Stoverock makes a specific claim that while the "80/20 rule" (80% of females prefer 20% of males in many species) is not yet true in most countries, she claims it will naturally emerge in egalitarian societies with economic freedom and public healthcare. She gives Norway as an example, where the number of childless men has increased from 14% to 23% over 30 years, while the number of childless women has remained the same at 10-12%. This she says is the 80/20 rule in action. Unlike the usual manosphere claims based on online dating "data", this one seems based on real world data. Can any from northern Europe comment on whether the data is true? If so, are there alternate explanations ? I suspect there may be alternate explanations that aren't obvious to someone not from that region.