Well in the grand scheme of things this isn't so bad, we eat chickens by the billions & turkeys by the millions... and kill off 99% of male chicks
i don't see what the big deal is.
The Fate of Male Chicks
i don't see what the big deal is.

The Fate of Male Chicks
Chick culling - Wikipedia, the free encyclopedia
Several methods have been used to cull (slaughter) chicks:
Maceration, using a large high-speed grinder into which the chicks are fed.
Gases or gas mixtures, often carbon dioxide is used to induce unconsciousness and then death.
Cervical dislocation, manually induced dislocation of the spinal column from the skull.
Burying alive.
Electrocution, a new method that has been touted as being cheap, reliable, and humane by its developers [1]