Unable to interpret this 100% stacked area chart I suffer from "graphical dyslexia". I have trouble interpreting charts. So I pore over them for long periods of time. For the life of me, I can't figure out how the conclusion from this chart is: 


  the bottom 80% of men are fighting over the bottom 22% of women and the top 78% of women are fighting over the top 20% of men (Source)


Please help me understand.
The statement is that the point (22,80) is on the barrier between the regions marked "Male advantage" and "Female advantage".