From the comments, it appears one solution is to train them to become hunter/jumpers, or dressage ornaments.
Some of them... yes. :-) All some of them need is a little marketing and a chance.
Others need more help, and some undoubtedly need to be humanely put down. That’s what I plan to do. Help with them. All of them. That’s what I’ve been doing. I belong to 3-4 different private groups and networks that help horses in my area. Work with those who need new homes, work with those who need humane treatment, work with those who are taken by law enforcement for neglect. There are groups all over the country who do that. If they are overworked in this economy, then maybe consider helping them! :-)
Tammy, you seem to want me to come up with a solution that means there will be no more irresponsible people in the world. I’m afraid I can’t guarantee that... but I do know this horse slaughter idea doesn’t solve them either.
Sale of horses to slaughter in this country is evil for the sake of convenience for a small percentage of them and I don’t have to endorse that. Most people actually do right by their animals and won’t miss this option. We’ll deal with the rest. It would help if we could fix this economy!