There are plenty of Brits who enjoy this barbarism, probably partly because they were brought up to it however I doubt there's a British person stupid enough to include their tendencies as part of some leadership campaign. They'd know it would be a death knell.
There is also a different slant on the morality of hunting in the UK where most quarry is bred for purpose or considered vermin and killing endangered species in Africa.
If these 'so called' brave men had killed this cat in hand to hand, I would say, that's fair enough, but shooting it from afar, is because they are cowards, and enjoy hurting and killing something that can't fight back.