You insist that words derive their meaning from social usage, then declare "what it's like" meaningless by dissecting its individual words into "similar being." That's not a serious linguistic argument. You're contradicting your own account of how language works.
Likewise, a rock "experiencing erosion" and a person experiencing pain involve two different meanings of "experience." One means undergoing a physical change; the other involves feeling something. You're equivocating between them. And a camera has a vantage point, too. That doesn't mean it has subjective experience.
Nothing I've argued requires consciousness to be nonphysical or inexplicable. A physical explanation of pain doesn't negate the existence of felt pain. The question is what produces that experience and how we can reliably identify it in other systems.
I incorrectly attributed someone else's quantum-collapse proposal to you, I retract that. I see that was from the original commenter, not you.
But here's the fundamental issue: Do you actually deny there's a distinction between a nervous system detecting harmful stimuli and someone consciously feeling pain?
Because if you recognize that distinction, you already understand what phenomenon we're investigating. Disputing the terminology doesn't make it disappear.