I personally think there are far worse things going on in this world than a few horses that have an amazing life, and if they do sadly fall at a jump and are in pain get put down very quickly; so they don't really suffer. I am afraid I don't understand why people think they are made to race. No horse will run fast or jump big jumps if they don't want to, they refuse, and the rider goes over their head; so I think they do have a choice. As for the oxygen thing, that is not so terrible, runners in the marathon sometimes need oxygen as they have pushed themselves a bit far. So what? At least they are given oxygen and cared for well. Don't get me wrong, I abhor animal cruelty, but racing, in my humble opinion, goes no where near the dreadful cruelty that happens in this world. As for what happens to them when they retire, I feel we should be more concerned about what goes on in residential homes and hospitals which I suggest is far worse than what happens to these horses.