Quote from james_bond_3rd:
This was in the original post:
"The evolution theory also predicts that if the males compete only in a local population (within a single herd, for example) while the females disperse throughout the global population (leaving the herd at adulthood), then the percentage of males should drop significantly. The ratio is essentially a function of the local population size (Local Mate Competition Model)."
Tell me, if the 1:1 ratio is the benchmark we start with, what would the ratio be if "the percentage of males should drop significantly?" Is it still 1:1? Why would it be "a function of the local population size" if it doesn't change?
It would be clearer if you ever bothered to read the article in the link given. I gave you two chances to read it. Anyone who still don't get it deserves to be called "idiot."
It wouldn't matter in the X chromosome Y chromosome scenario because the determination is basically a coin flip.