While everybody is laughing at the meme, hundreds (if not thousands) of horses are killed every year simply because they cannot race or are not profitable, many as young as two years old. https://horseracingwrongs.org/
To mention nothing of other cruel practices, among these forced separation from their mothers, nose chains, blinders, whips, over breeding, etc.
Breeding these animals is not funny, it is not a joke, and these breeders are awful people.