Natural Selection Seems Insufficient

[Jal]

A rock has all the qualities of a sentient human being but too negligibly/ primordially to realize it. Just like a plant. The same potentiality is there and can be realized. If a rock is an unclear example, maybe a sandwich is a better example.  A sandwich SEEMS non-sentient but when I eat it, and it becomes part of my brain matter, it's potentality for sentience is suddenly realized.

Not sure why you think I have a logical problem here. Just because you disbelieve in degrees of sentience doesn't make you correct and me wrong.

Name those qualities and your evidence that a rock possesses those qualities.

Panpsychism is a reasonable metaphysical apriori/ axiom understood to resolve the unreasonable assumption of emergent consciousness.  I don't have to prove it, I only need to recognize that the alternative is implausible/ unreasonable. 

As an analogy, I don't need to prove Euclid's fifth postulate to adopt that axiom. I simply need to recognize that the alternative is implausible/ unreasonable.

Obviously we can be wrong in our axioms. That's why we should all take our own views as tentative. But you haven't demonstrated the notion of a primoridally conscious rock to be illogical.