We lack a definition of consciousness that allows us to tell whether Data is conscious or not. Neither can we tell whether a rock is conscious or not. We believe other humans to be generally intelligent without being able to tell whether they are conscious or not therefore consciousness can’t be relevant for general intelligence.
People somehow forget how the Turing test was considered the definitive way of showing something to be "human-level consciousness".
Now programmers and mathematicians are being superseded by AI, both professions long deemed the pinnacle of human intelligence. Somehow, now plumbers occupy that spot.
How is "people not knowing what consciousness is" relevant here in the first place? AI already can do practically everything the human brain can, and often better or at least faster. The "tipping point" arguably isn't only close, but we're practically on top of it.