China has shown with its one-child policy where this leads. Much more boys than girls as boys are preferred. Leading to millions of men without wifes going nuts. Leading to little emperors being raised instead of normal children. Leading to an age pyramid were an extremely few younger ones have to support a massive amount of elderly. Social control is always bad for countries, societies, and economies. And it’s the poorest that will suffer the most as usual.
If this disregard for our very humanity goes unchallenged, we could be in for some dark times indeed. Watch COP26 at Glasgow for trends.