I didn't want to suffer through the whole article but in what I read the author never addressed why the sex selection argument is often used. It is pro abortion feminist who decry the decision to kill unborn babies based on sex selection. The gotcha is why are you only pro-choice when you agree with the choice? If killing babies is OK does it matter why the mother wants to kill it?
The pro-life side doesn't have this problem, killing the baby, boy or girl, is wrong.
There is no logic or attempt at reasoning from philosophical axioms. The article consists of assertion after assertion, based on personal emotional feelings.
This is how most five year olds think.