I’m criticizing panpsychism as a theory of the universe, not as a theory of consciousness. But even as the latter, neither does it explain much of anything, nor does it make any useful predictions I’m aware of.
Personally I don’t make the claim that all humans or even I myself are conscious, because I find the notion of consciousness to be too ill-defined.
That is something we can certainly disagree on. I would hope given your fist-hand experience of the universe you would at least posit that you yourself are conscious :)
This is an inconvenience for every theory of consciousness, isn't it?