Animals do not make laws. Animals do not force clothing, literacy, taxes, speeding, honesty, fidelity, property rights, punishments for murder, or trial by jury-- for billions of years across 1.7 million species.
Atheist begins: "Let me Introduce you"
Evolution does not provide the framework for:
1, binding imperatives/ mandatory actions, emotions, opinions
2. shame, remorse,
3. respect, empathy.
You can post commands and opinions, but for billions of years 1.7 million species will entirely ignore and defy your commands and opinions-- just as they do to this day. Humans as animals are not bound to any imperative, opinion, goal. purpose.
Whatever actions, responses, behaviors, traits you do cite in an animal it is still not "objectively good", as if jumping, swimming, climbing, burrowing are objectively good/ bad.
Violence happens in the animal world, but so does jumping, swimming, climbing, burrowing, nudity, illiteracy, infidelity. You either embrace all traits, or renounce all traits; But all traits are equal though different. A brown cow is not better than a violent cow. A peaceful cow is not better than a red cow.