Consciousness

[GrandizerII]

Here is my argument:

P1) Everything is physical
P2) Consciousness certainly exists
C1) Therefore consciousness is physical
P3) There can be no radical emergence
P4) If there can be no radical emergence then consciousness can't emerge from total non-consciousness.
C2) Therefore, consciousness can't emerge from total non-consciousness
P5) If Consciousness can't emerge from total non-consciousness, and consciousness certainly exists and is physical, then physicality must fundamentally be experiential
C3)  Therefore, physicality must fundamentally be experiential
P6) If physicality must fundamentally be experiential then panpsychism is true
C4)  Therefore, Panpsychism is true

You could basically use this same argument to argue for idealism, but maybe I am misunderstanding what you mean by physicality fundamentally being experiential.