It’s really unfortunate that you view a kind death as the worst thing that can happen to a horse. They live in the now, not tomorrow. There are so many reasons euthanasia might be the best choice, ranging from lameness to the inability to continue to care for an animal.
The future can be bleak for horses that are unusable. Even with best intentions, bad things can happen. You think that situation at Byrd’s retirement farm is particularly unique?
There are just so many things worse than a kind end on a sunny day after a bucket of carrots.