Eventually even the most cement-headed of them will figure this out.
When they do, expect abortions of males to be made mandatory.
They already know this.
They understand slippery-slope. They cannot be against any reason a woman has because if there is one accepted reason, others will make the case for other reasons, then abortion becomes restricted and womens desires could be overriden.
They are being extremely consistent. They know they have to be.
Bingo! Just like with paternity tests - after any (technologically enabled) social "advance" is made, if it eventually becomes apparent that it hurts their cause / benefits men, they will scream for prohibitions.
Thus, genetic testing (with the intention of culling "inferior" embryos) is a "blessing" - until it becomes noticeable that it's being used for sex selection (in favor of baby boys).
Likewise, genetic testing (with the intention of screening for hereditary disease) is a "boon" - until husbands use it to reveal their wives' infidelity.
So while this won't lead to "abortions of males being made mandatory," they will want to enact legislation forbidding the doctors to inform the parents about the unborn child's sex (already the case in India and, more recently, Bangladesh; the ban in South Korea was recently lifted).
Doesn't make sense, does it? Effectively, you can thus legally kill the unborn child for any reason - except on the basis of its sex (i.e., unless it's because it's a girl), or on the basis of the mother's promiscuity (i.e., unless it's because it's a bastard) - see corresponding legislation in France, Germany, and Switzerland!
A person could almost think that we were living in a gynocracy!
Regards,