The error I believe is that we don’t want to accept that sentience can arise from mechanical universe and it’s a matter of degree and that this can create meaning. People want to set the bar higher because they want the idea of some type of “pure mind”. But since we’re already discussing the meaning of all these things, arguing that what you are reading is just quantum physics is rhetoric.
I don’t follow. It sounds like you agree that the concept of a “pure mind” is ridiculous, so I’m not sure what you mean by your last sentence.
I also don’t think of free will in terms of predictability. I think of it like this: if you could recreate this moment an infinite amount of times, you would always “choose” to do/think/react the exact same way every single time.