All of equestrianism is about maximising the utility of the horse for human pleasure, entertainment or function. This is true of most human-animal relationships, and everyone has a line when it comes to what they consider acceptable. The danger for the animals comes when the humans have an incentive that outweighs their interest in that animal's welfare. Olympic medals, Grand Prix, prestige (and money laundering opportunities) are powerful incentives.
Even at amateur level, the starting point of training isn't "what will make this horse happiest?”, it’s “how can I get it to bend to my will so that I get more enjoyment out of riding it?”. Horse folk have said so, repeatedly, in this thread. I see no-one has answered my question about why you aren't training them with a clicker. You shouldn't need bits, bridles, spurs and whips. Amazing how so many riders can read their horses' minds, and yet can only communicate with force, however mild.
There would be outcry if dolphin tricks became an olympic sport. It would be insane. People and royals have been doing equestrian for a long time, so it seems normal and respectable, but it's quite weird really, in this day and age. Most sports are weird I suppose, when you break them down, but ideally they wouldn't involve non-consenting creatures being forced to participate.
The people posting jolly anecdotes about how their horse once did a backflip unprompted in a field (and extrapolate that they must therefore love being made to do it with a rider on their back), are coming across like total rubes. Either they can't see it, or they don't want to see it, but cruelty is baked into horse sports.
I mean, what exactly is the thought process here?
“Aw look at that horse frolicking in a field, having the time of its life. It looks like it’s dancing! You know what he’d love? To spend most of his time stuck in a stable, to be brought out to do those moves on demand, in a foreign place, with a human on his back and a bit in his mouth. I can’t imagine anything else would make him happier.”
Yes, yes, I know they’ve been bred and raised to do this, and don’t know anything else - but is that really a good argument in favour? Why are they being bred? Who’s it for? Surely no-one can honestly claim it’s for the horses.