I personally suppose humans all (or 99%+, there are always statistical outliers) have a consciousness actually, but that doesn't mean I can use it as a fact when making an argument. For example, if you do use it as a fact, then why doesn't monkeys have a consciousness, pigs, cats, muskitoes, trees, planks, too, etc etc etc.

Math is based on the idea that 1+1=2 and you take that as granted. I can live with that, it seems reasonable. All humans have a consciousness? Not accepting that if you infer that just because a machine can mimic a human brain, it thus also will have even the possibility to have a consciousness.

Do you think a machine can have a quala, the experience we "experience" because we have a consciousness?