My reply to a blog comment:
Persons witnessing the murder of animals are aware of this:
"Animals do not 'give' their life to us, as the sugar-coated lie would have it . . . They struggle and fight to the last breath, just as we would do if we were in their place." [John Robbins]
“He must have never seen a predator violently and painfully kill another animal.”
They do it for survival.
Humans do it for “taste”.
Humans are not predators and would NEVER have thought of that idea have they not been ingrained in the culture we live in, and substituted their intuition that it is wrong to harm and kill another sentient being with our cultural belief.
As I pointed out in my previous post there is no such thing as “kindly” take anyone else’s milk – in your example the milk that belongs to a calf.