It's a shame the OP was written in such a manner, it takes away from the gravity of this issue.
I have witnessed/known of:
Horses dying from horrific injuries or permanently lamed due to reckless riders.
Hunt horses taken out with nasty saddle sores because their owners wouldn't but a properly fitting saddle and the yard I briefly worked at were more concerned about losing livery money than dealing with the welfare issue.
Pets killed by hounds (yes those 'scent' hounds). My own dog was once attacked by the terriers that are sent down holes (if hints are just drag hunting why do they still use terrier men?).
Foxes being chased by hunts. Yes, a few hunts drag hunt; drag hunting existed before the law changed. But traditional hunts are still about the 'sport' of ripping an animal to shreds. And not just the old/ill/injured. Is it really more ok for a pack of dogs to kill a frail animal by ripping it to shreds than it is a healthy one?
I've personally known hunting folk and sabs. Sabs care about all animals, not just the foxes. They care about the poor horses and the poor hounds who also suffer for the 'sport' of hunting.
On another note, foxes are not a pest; they belong in the countryside and are part of the food chain. They do sometimes kill chickens that haven't been secured enough. They are opportunistic hunters that leave their kill to return to at a later time, which is why people think they don't always kill for food (oh the irony of human fucktards). Humans kill hundreds of millions of chickens every year and many (a few years ago I read an article that said 86 million) are wasted. Foxes are not the problem here.
How can people who dress up in fancy coats and plait up their horses to gallop round fields (ruining land in the process at times) justify it by saying that foxes don't just kill what they need to eat? Humans are the worst culprit for that, and have a level of consciousness that means they can make moral decisions.
Obviously reading this thread while unable to sleep was a bad idea 
Disclaimer: types on my phone and not proof read before posting!