I agree with Xoras. It is a neccessary evil. I don't think anyone wants to see a horse slaughter. I would rather see them put down humanly then to starve to death. We have auctions here every month and it is sooo sad to see all the skinny horses. If I could afford to I would take them all in.
I think people should be responsible with their breeding. It seems that most of these horses are from "backyard" breeders which contribute to the problem. Not to say that it doesn't happen to quality bred horses but most of the ones I see probably shouldn't have been breed in the first place.
That's just my opinion tho. I don't want to argue with anyone. :)