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what do you mean with being above nature? That you interfere in nature? But the chimpanzee also intervened in nature by eating some food, so in that sense the chimpanzee was above nature as well. The chimpanzee wanted to stop someone else from living, I wanted to stop the chimpanzee from killing.
You know that we should be above nature when it comes to ethics, because in nature some ugly unethical things happen. So we should not listen to nature and not condone the ugly things. Being above nature in the ethical sense is good. But first of all you should clarify what you really mean with being above nature.
Yes, humans and animals are equal, and yes humans have the right to stop chimpanzees from eating meat. Where is the contradiction? Chimpanzees also have the right to stop humans from eating meat, so there is our equality.
What do you mean with that natural state and being in contradiction to a natural state?
I don't understand your whole question. What makes whom different making what allowable?