I presume, like everything else wrong with Capitalism, it comes down to cost. It’s more cost efficient somehow. I don’t understand the details, because I’m not a chicken farmer, but I have been in the capitalism machine for a long, long time, and I’d bet a shitton of tax payer money that it’s purely down to cost.

If it saves $0.02 per chicken, they’ll gladly poison the rivers, oceans, lakes, etc. with refuse and baby chick corpses.

I suspect the optimized egg laying DNA is different from the huge breasted good tasting chicken meat DNA.

So the male born egg laying DNA chicks are unfortunately not useful to the farmers except for whatever they used the ground up remains for, which I suspect is probably feed or fertilizer.

Dual purpose breeds for both egg laying and meat production are poorly optimized at either. So the industry has moved onto specialized breeds that are best at doing one of them.

Plus raising roosters together is much more logistically challenging than raising hens. So they’d need much more space and much more oversight/labor. So rather than devote some resources to raising males of breeds that are good for laying eggs, they’d rather devote those same resources to raising much more meat from females of meat breeds.

The hens are bred for laying as much eggs as possible, on the cost of meat production. this means, that it isn’t profitable to raise them, just to get some meat, when you can raise other chicken breads to get twice the amount of meat.

I am guessing, only based on the fact that the immorally fast growing chickens only make a few more cents, that they are not profitable.

Also I am not sure if roosters can be kept together past a certain point maybe?