Thanks for this. To put it another way -- if you're unwilling to object to causing suffering to other animals because "that's what they do to each other anyway

Thanks for this. To put it another way -- if you're unwilling to object to causing suffering to other animals because "that's what they do to each other anyway", you lose the ability to make ethical objections to murder, rape, etc., when they're being performed by humans. We know that other animals don't have the same evolved talent at empathy and compassion (and ethical reasoning) that humans do, so we don't expect them to become vegetarian themselves. The fact that humans are capable of these things introduces a responsibility for us to use them rather than ignoring them.