By your rationale it is then okay for us to torture, murder, and eat other humans who are less powerful than we are. A chicken or a cow or a rabbit may not be able to win a physical fight against a human, which by nature's rules, deems the human the winner and higher in the food chain.

If you use those rules within the human species alone, you're taking the approach that stronger is right, that just because you can overpower another being, means that you have the right to do so. So if a terrorist for example can devise a plan to outsmart americans killing thousands, or even millions, they have done no wrong according to your beliefs.

It's very convenient for a christian to say that eating animals is right. It's also convenient for a nazi racist to say that killing jews is right. Just because they are you're beliefs doesnt mean that they are ethically correct, whether you believe them to be handed down by god or not.

The Bible is a book, written by men, to control men. It is based on fear, as fear is the most easily controllable emotion. Use your own brain and dont rely on the dictations of men that lived two thousand years ago. If god existed as the bible says, there would be no need for an earth or a hell, only a heaven. Think about it.