No you are just making new definitions.
The common definition is based on observation. As such it is descriptive of the human experience of it. This is fine, but does not explain how it comes to be, or how it can, if generated scientifically by experiment, be distinguished from the mere appearance of consciousness, by observation.
No. That is self-awareness.
This self awareness must be experienced to be known. Presumably for self-awareness to be self-aware, it must be known. This requires the experience of knowing something and the experience of knowing one's self, as distinct from everything else.
They can't care, or know.
Because human consciousness as experienced these days is so much more highly developed in terms of intellect from our close relatives, that surely it can have little resemblance, if one were to experience the other.
Making a conclusion based on your unfounded assumption. Does not compute.
My point is that humans may look at consciousness as experienced by a human, in all its uniqueness and naively assume that it can be easily replicated, or that other conscious organisms, have in some way, something equivalent to the human experience.
Wrong. It is being quite intensely researched.
What, how the brain works in processing sensory data? This has more to do with intelligence than consciousness. Anyway, where are the experiments to generate consciousness in the lab? Not experiments to generate intelligence in the lab. Or the experiments to replicate cellular metabolism, or isolate the processes of life in the cell?