What he said. I mentioned in a previous post that a lot of this is about the effect on us, and our own humanity.
Perdators catch prey and rip it apart all the time. They'd starve if they didn't. We don't try to stop this. (Nevertheless, when we witness it, we do usually experience feelings of revulsion and become upset.)
However, when it comes to people deliberately setting a pack of dogs to run down a fox and tear it apart, and stand around whoopeeing as the animal breathes its last, and then anoint the children present with the fox's blood and give its body parts out as trophies - well. It used to be accepted as perfectly normal. Now it isn't. That's what I mean by advances in our approach to animal welfare. The issue is at least as much about the barbarism of the human involvement as the suffering of the fox, and the realisation by society that we'd just as soon move on from this position, thank you.
Same with slaughter. People have always tried to kill food animals as humanely as possible.
Homo sapiens has the facility of feeling sympathy and empathy, even with animals. The "clean kill" is a virtue. (Yes, there are horrible exceptions to this, but in general, it's honourable to try to give the animal a clean death.) Shechita was a genuine attempt to do that, 4000 years ago.
So we move on. We try to do better. Now it's the captive bolt. In 50 years, people could be railing about the inhumanity of the captive bolt compared to a newer and better method, possibly nitrogen. If so, good.
And it's also about the reason for the kill. Just as we accept the lion's right to kill the zebra for food, we accept the right of our own species to kill livestock for food. At present. (A strange and diminished landscape it would be, without the cattle and the sheep, but that's a consideration for the future, maybe.) We also accept the necessity for killing vermin. And for culling excess populations in some circumstances, to allow the remainder to flourish, and for ending the suffering of sick and injured animals, as I did with the ram on Wednesday. But we believe this should all be done with no or minimal pain and suffering. Or most of us do, and we're trying to persuade the remainder.
Killing for fun is still quite widespread, and likely to remain so for some time. But look at the stuff that's been banned in recent years. Cock fighting. Badger baiting. Dog fighting. Fox hunting. (And who would have predicted that last, even 40 years ago?) Will we get round to ending the shooting of pheasants and grouse and deer? Rabbits? Where do killing for fun and pest control intersect? What about angling? I think all these things are being looked at with a more and more critical eye, so who knows.
We don't accept the idea of killing for no reason. It's not illegal to kill any animal you own, so long as it's done with no suffering, but someone breeding kittens to kill at 4 months old would probably find themselves talking to a psychiatrist. If for no other reason than that a penchant for killing animals has been linked to future atrocities against human beings.
Will there come a time when we revere all life to the extent of absolutely not killing anything in the animal kingdom, for any reason at all? In the very long term, I have no idea. It's been a vision of mankind for a long time, see Buddhism for example, and even to the extent of dreaming that predation in the animal kingdom might end.
Isaiah said:
The wolf also shall dwell with the lamb, and the leopard shall lie down with the kid; and the calf and the young lion and the fatling together; and a little child shall lead them.
And the cow and the bear shall feed; their young ones shall lie down together: and the lion shall eat straw like the ox.
And the sucking child shall play on the hole of the asp, and the weaned child shall put his hand on the cockatrice' den. They shall not hurt nor destroy in all my holy mountain: for the earth shall be full of the knowledge of the LORD, as the waters cover the sea.
And look which civilisation that vision of paradise came from.
The idea that since we haven't reached that yet, there's no point in trying to do better because it's "cognitive dissonance", seems to me to be simply perverse.
Rolfe.