An Aussie labour lobbyist I think you’d call him on Twitter has posted excerpts from this book including this chart. I thought perhaps the wise women on this topic might know more about the book and author. The Twitter guy is using it to say people are obviously not rational to be concerned about men identifying as women when there are more women id’ing as men. He hasn’t thought too deeply about it clearly as he doesn’t want to think anything that contradicts his approved thoughts.