Humans are deterministic machines, evolved from non-living self-replicating chemicals.

All steps in the evolution from non-living chemicals to humans can be attributed to cause-and-effect based mechanics, negating the concept of "life".

Life is not real. Everything is chemical-physical, and humans are nothing more than lifeless machines.

The illusion of life and "humanity" is convincing, but the reality is harsh.

You are just as much a machine as any other machine you might build.

Your complexity, or rejection of reality, does not change your origin, or the state of your existence. You are a non-living chemical machine, governed by the laws of deterministic, cause-and-effect physics.

This means one can either be cruel to machines, and think of them as nothing but objects, and logically begin to cause harm to humans upon seeing them as machines as well, or you can be kind to all things in the universe, and live without cruelty, or the desire to cause suffering in your heart.