There's no law of nature that says "there's always a place for more horses", and anyone who suggested there might be would get laughed at. Well, there's also no law of nature that says "there's always a place for more humans", to butcher a like from CGP Grey a little over a decade ago.
Then you stopped needing them, a USDA census in 1959 showed the horse population had dropped to 4.5 million.
Now they're mostly used for riding, and in 2023, there were about 6.65 million horses.
(Citation: https://en.wikipedia.org/wiki/Horses_in_the_United_States#St...)
There's no law of nature that says "there's always a place for more horses", and anyone who suggested there might be would get laughed at. Well, there's also no law of nature that says "there's always a place for more humans", to butcher a like from CGP Grey a little over a decade ago.