Because I enjoy eating the flesh of slaughtered animals. Whenever I do so I feel nothing but absolute pleasure of the taste of cooked flesh. I feel zero guilt. And so does the majority of the human race.

If I were to do the same to a human that would be a big problem.

Why is it like this? I don't know but that's just the way it is. Don't try to rationalize it, it's not supposed to be rational. Our evolutionary quirks and moral instincts are the product of biological evolution not rational thought.

It's not rational, but it is self evident, to everyone. Including you. Your appeal is more of a request to ask for the rationality behind it and hoping that when people see how irrational it is they will side with you.

People aren't rational. There beliefs are based off of instinctual desires and they construct scaffolds of rational logic around their preconceived beliefs.

For example: how do you justify the slaughter and killing of all the plants that cows rip through without a second thought? Are plants less important then animals? It's mind blowing how many plants are literally executed every time those cows chew.

This what I do is a service to justice. I eat the flesh of slaughtered cows to punish plant killers. I balance the scales of justice every time I devour a steak.

This same logic justifies cannibalism of all vegetarians too but I'm unwilling to eat vegans. You'll have to get back to me on that. It takes time to fully rationalize all my instinctual behaviors.