OP states that "[consciousness is] a situation where a root cause is murky and escapes testability", which is simply special pleading. If you cannot test your hypothesis, what is more likely - that you have discovered a completely unique and mysterious phenomenon, or that your hypothesis is inadequate?
It appears to me that the whole argument is predisposed upon that sort of special pleading. We have no clear evidence for the existence of consciousness, but it must exist because my subjective perception tells me it does. That perception different from the subjective perception of god or auras or the buddha-nature because... it just is.
Bluntly, go away and come back when you have a null hypothesis.