You are obviously not familiar with the latest comparative research on the so-called "difficult problem of consciousness" phenomenon. It is interesting to mention the so-called Chalmers' (philosopher David Chalmers') five arguments in support of the fact that the phenomenon of consciousness cannot be explained by purely physical causes. Robert and Susan Mais worked on solving the "difficult problem of consciousness" using the method of scientific analysis for more than 40 years. You can read more about the whole issue at the following link:
https://near-death.com/near-death-experiences-solve-the-hard-problem-of-consciousness/
Chalmers' Hard Problem of Consciousness
Claim: The "hard problem" asserts that subjective experience (qualia) cannot be explained by physical processes alone.
Progress in Neuroscience: Advances in neuroscience increasingly show correlations between brain activity and subjective experiences. For example, studies using fMRI and EEG reveal how specific brain regions are associated with perception, emotion, and thought. While the exact mechanisms are complex, these findings suggest that consciousness emerges from physical processes.
Chalmers' argument often relies on gaps in current understanding, implying that just because we don't yet fully explain consciousness physically, it must be non-physical. This is a form of the "argument from ignorance," which is logically flawed.
Many phenomena in nature (e.g., fluid dynamics or complex ecosystems) are emergent properties of simpler components. Similarly, consciousness may arise from the interactions of neural networks, even if this process is not yet fully understood.
While the "hard problem of consciousness" highlights current gaps in understanding, it does not prove that consciousness is non-physical or that it exists independently of the brain. Advances in neuroscience and cognitive science provide a growing body of evidence that consciousness arises from complex interactions within the brain. Extraordinary claims, such as those made by Robert and Suzanne Mays, require extraordinary evidence, which is currently lacking.