You are speaking out of your arse! Do you know that there are good estimates on the number of abortions, and the preference of male over female fetuses is not as large as portrayed in Western-zio Media?
PLEASE, dude go to China and see for yourself. In nature, humans tend to have more baby boys than girls -- that's probably the effect of thousands of years of evolution. But females tend to outlive their male counter parts. That's just nature. You see this sex-ratio disparity in ALL human populations, be they black, white, yellow, brown, orange, red, green
So if you are going to use male-to-female ratios you need to factor this in.
Now, refrain from speaking out of your arse when you don't understand the ground reality!