What the hell do they taste like?
That depends on how they're prepared. I've had them fried (both breaded and not) and ground for hamburger patties. Both ways they were very hard to tell from the "regular" cuts of beef.
Adaption of a wild horse isn't all it's cracked up to be. One of my past girl friends adopted a couple. It took almost a year to get approval and one or two inspections of the property prior to the approval. Serious fencing requirements.
They arrived with multiple problems, the worst of which were their hooves. It's hard to find a ferrier for a horse that's not even halter broke. It took a year or so for their hooves to come close to where they should be.
They're for the most part ugly horses. Short legs, big bodies, scars, coarse hair etc.
After almost 3 years, working with them 5 days a week, she had them halter broke. They'd still try to bite or kick anyone careless enough to come close. She finally got rid of them to another starry-eyed bleeding heart.
And, for the PETA crowd, adoption takes them out of their normal habitat and life of freedom and forces them into a life of essential slavery. Maybe that's why they're hard to "tame"?
Sterilize the one stallion of the herd, the next oldest steps up to the plate. Sterilize all of the herd maybe? Lots of money & manpower involved there. And what happens to the sterilized stallions? They'll loose some (if not all) of their aggressiveness, get their butts killed in a fight, or they'll end up wandering by themselves until they eventually die.
Shooting seems a much more humane solution.