No it isn't. We can tell animals don't want to die in the same way we can tell they don't want to feel pain, by the fact that they try to avoid it. We don't need to prove that they're able to "abstractly conceptualize nonexistence" or whatever to establish that fact.
Your arguments would be a lot more coherent if you rejected the idea that we can tell what's happening in a creature's mind by how they react. Of course, then you could apply the same logic to humans and it would be solipsism, but at least solipsism is a coherent, internally consistent idea, unlike your bullshit.

