Ok I'll be the pedantic comment guy.. AkShUaLly liquids and gasses are both fluids so technically this meme doesn't make sense as "fluid" is not a recognized state of matter. The correct state would be "Gender Liquid", but that sounds like a different sort of good time.
I definitely think it should be more like a two component system, with Male/Female ratio as the x axis and sexuality or alcohol intake or number of cats in the house or whatever as the y axis.