I will reiterate that IVF as mentioned in this topic is a red herring. Nearly everyone doing IVF couldn't give a damn if they had a boy, girl or Martian. Sex selection is an issue predominantly in the fertile population.
There are an estimated 500,000 embryos, fully conceived, genetically complete individuals, now in cold storage.. and realistically with no hope of ever being brought to maturity.. in the interests of 'fertility'.. which will eventually be discarded OR reduced to stem cell lines for 'scientific research'.
It is simply a matter of time before embryos will be able to be assessed for gender, height, and whatever indicators genetic indicators can determine.. relegating unwanted to embryos, who don't match the spec sheet, to this fate.
If you accept that life begins at conception, the ONLY framework that allows for any 'sacredness' to human life, then this is a holocaust only outdone by abortion in our brave new age.