> Most people wouldn't eat meat if they had to kill an animal either.

I remember clearly we did the fattening and killing of chickens at home when I was a child. I had to step on a broom stick that was on the chicken neck, and wait until the chicken died. Then the adults cooked it and we ate it.

There was nothing strange or shameful about it, chickens were not 'pets', and every household did the same.

I would say people will step down their high horses as soon as the hunger and need of protein can not be satisfied with supermarket meat.