My view that conscious awareness can't be generated from material reactions alone is not just personal incredulity. It is based upon sound logic on which I could write many pages. Unfortunately I can only give a short account on this forum.
Why can't you produce even a hint of logic here, then? I'm not actually convinced that you even know what it means. If you did, we wouldn't get the endless fallacies. Also, if you understand logical reasoning and somebody accuses you of using a fallacy, you would expect then to argue why they aren't - you just ignore it.
People seem to confuse material reactions with conscious perception.
You have given us no reason to think it isn't.
Conscious perception is not just a complex reaction. External observance of complex reactions can often be mistaken as an indication of conscious perception, but the simple truth is that consciousness is not material reaction, but perception of material reaction. Our consciousness allows us to perceive the data from our sensory organs rather than just react to it.
You are just asserting that consciousness isn't a part of a material reaction (although, the "material" is logically irrelevant), not making a logical argument for it.
We can share our conscious awareness with other human beings by choosing to use abstract media to communicate what we perceive. Early evidence of this type of communication exists in the early cave paintings in which humans were able to show what they perceived by reproducing images on the cave walls.
Totally irrelevant. Nobody is denying our ability to perceive things.
These early cave paintings also demonstrate the human freedom to choose how to respond to perceived data rather than just react to it. Modern humans can now choose many different means to communicate their conscious awareness with other people.
Again, you are simply assuming that human choices are not reactions - where is the evidence or reasoning to back up this assumption?
I also challenge the presumption that there is no evidence for the existence of non physical entities beyond the scope of scientific investigation. The existence of our universe is in itself evidence of the non physical.
Assertion.
Current evidence indicates that our material universe, together with its associated time dimension and physical properties came into existence a few milliseconds after the singularity known as the big bang. It is logical to presume that this singularity has a causation from outside our known universe, and by implication we must presume that this causation was a non physical entity.
It isn't logical to presume that at all. Do you know anything at all about the relevant science?
For want of another word, we could call this non physical entity the source. This source is obviously beyond the scope of scientific investigation, but without it there would be no science, no universe - nothing. Science can't determine if this source's only interaction with our universe was creating the singularity, or if there is still interaction from this source. Science can't be used to deny such interaction, because there are such things as quantum indeterminacy which have no discernable cause from within our current scientific knowledge. So we have scientific knowledge of the existence of this source, but very little else from the science perspective. If this source does have interaction with our material universe, we need to use our considerable abilities to look beyond the limitations of human scientific knowledge and contemplate the evidence provided by our own existence and human nature and come to realise that our ability to search for God is a profound human asset beyond the scope of scientific investigation.
Argument from ignorance fallacy.
So, once again, not even a hint of the promised "sound logic", just more of the same assertions and fallacies - and you're still totally ignoring the logical contradiction in your assertions about how human choice works - not fully determined by its antecedents and no randomness - a contradiction that has nothing to do with minds being physical.
Hint: a logical argument usually starts out with its assumption (premisses) and then precedes in logical steps from them to a conclusion. It doesn't consist of hand-waving waffle riddled with assertions and fallacies.