I can understand that you don't like it.
Unnecessary? That's a matter of opinion really. It could be argued that eating most of the things we do is unnecessary. Do we really need the factory farms full of chickens, cattle, pigs....whatever? It always amazes me that people accept the systematic breeding of animals, sometimes in really harsh conditions, for slaughter - they don't want to lose their steaks, pork chops, chicken wings etc - but when someone hunts a tiny percentage of an animal that occurs in the wild they get all "righteous".
I'm sorry - I see that as a clear double standard.
Do you need to be intelligent to feel pain? Is throwing a live lobster into boiling water somehow morally better than killing a whale? Or killing ANYTHING because we want to eat it, and sometimes even prolonging it's death because it tastes better like that - like veal?
I always prefer to kill what I eat myself. It's harder and not often possible in modern life but I feel less hypocrit when I do.