Some animals eat other animals. That is not something for us to approve of, or not. It is simply a fact of life. I dont have a problem with it because I dont see it as a moral issue.
Other animals, such as cats and lions, are obligate carnivores. It is immoral to feed them a vegan diet.
Bad comparisons. People point to animals to show something is natural. Not moral. He confuses the issue. It isn't immoral to kill to eat. Starvation and need are not required.