I think someone has confused "sport hunting" with just blasting random animals. Sport hunting (to me) is hunting for the enjoyment of the ENTIRE experience. That includes getting out in the field, stalking, observing, locating a suitable target, carefully taking the shot, cleaning, processing and enjoying the game (antlers, pelts, meat, etc). Just because someone hunts for "sport" does not make them an irresponsible murderer of animals. Sport hunting does not mean killing, taking some proof of the kill (pictures, antlers, etc) and leaving the carcass to decompose.
If your vision of sport hunting is this, you have a very closed minded vision and are potentially a troll.