Oh yeah, I totally agree with you. When I say “consciousness”, I’m really talking about first person individual conscious experience (qualia). I do think most of what makes us who we are can be completely reduced to the brain (I.E. memories, reasoning, etc), and that is why I believe that bodily ressurection (plus restoration of the original person’s consciousness) would indeed be the only way in which we could be “truly ourselves” again after death. and it is indeed very clear that chemical changes in the brain are correlated to conscious experience. When I say “we have absolutely no clue about how the brain could possibly generate conscious experience” what I am really talking about is something like the concept of the “explanatory gap”
The real problem I see with completely atributing conscious experience to the brain is the “duplication problem”. If you could make a exact atom-by-atom copy of my brain after I died, would I regain my first person conscious experience? If the answer is “yes”, it really begs the question: What would happen if you made that copy while I’m still alive? What about two, three, four copies? So yeah, scientists are certainly not shooting in the dark when they say that the brain is strongly related to consciousness, but even if we assume that the brain is completely responsible for generating conscious experience, it is still fair to say that we have absolutely no clue on how or why that happens. We could very well just be Chalmers “philosophical zombies”, and that would actually be a much more reasonable hypothesis if we used Occam’s razor as a criteria, but it completely contradicts the data we have from experiencing consciousness ourselves.
EDIT: Indeed, it is perfectly possible for a Christian to share the materialist view, but what I meant by “weird consequence” was really something like “an weird accident with no real meaning”. A Christian can totally believe that consciousness is a product of brain processing, but not as an “weird accident”, but rather as something that was meant to be that way because of the will of God. That is why I associated this view with atheism, but I do agree that I wasn’t very clear, my bad.