WARNING some potentially contentious opinions:
Ok personally I disagree with the killing/harming of animals for entertainment/sport, I think it is neither. This includes: bull fighting, fox hunting, trophy hunting, cock fighting, real fur coats, circuses (performing dogs and parrots are exceptions). However I think there are always going to be wealthy over entitled individuals who are going to do it regardless of the law, so I'd prefer they do it in an area where the animal has been specifically bred for said purpose. I do also think that there is a degree of distinction between pheasant etc and lion. The main one being that the end result does contain a degree of practicality in that the animal is at least consumed. As such I don't have a big problem with the canned hunting of kudu, gazelle etc so long as the meat is consumed and if the hunter then keeps the skin as a trophy to show everyone his mighty prowess, to match his flash sports car and various other ego massagers then so be it. Land based predators however are never, to my knowledge considered palatable. Even omnivores, that have not over millenia been selectively bred usually are far less palatable than ruminants found in the same environment, which I can personally vouch for. I love most cuts of pig, whereas when I tried bear in Romania, (only a few restaurants are licensed to serve it, and even then it can only come from bears that have returned to human populations after at least one attempt at relocation) I found it very bland. All that said I'd rather an animal lead a mostly relaxed and pleasant life, with a relatively quick albeit terrifying demise, in a partially controlled setting (from what I could understand of the concept, once the lion gets marked for death it isn't going to get a chance to escape, with a wound that could then fester) than a species be wiped out due to illegal poaching. mankind for millenia has bred and or farmed cattle, sheep, goats, pigs, fowl, geese, ducks, horses, camels, pheasants, reindeer, guinea pigs, deer etc etc etc in almost every culture and civilisation and I don't see a huge degree of difference.
If you can fill the unforgiving minute,
With sixty seconds worth of distance run,
Yours is the Earth and everything that's in it,
And - which is more - you'll be a man my son.