In all seriousness, why should I care about the life of livestock, who's brains have not advanced past basic survival instincts? I don't have a lot of money, and meat is cheap, nutritious, and tasty. Some humans don't care for meat. That's okay with me. But until cows start acting like the ones in your world, I do not see any reason to drastically change my diet.
You want meat? Go eat an unfertilized egg. There, no one was harmed and you got to eat meat.
And they have survival instincts. Your species has simply created a system from which they have no escape once instated. You exist on a higher mental plane then them, which is supposed to come with more responsibility. Nice to see you exercising that.