The statement that consciousness is subjective and should and will be interpreted does not lead to hardcore social constructionism nor does it lead to solipsism, sorry this doesn't make any sense. It looks way more probable that it contradicts your hard beliefs that don't need proof. If you believe consciousness is objective and exists independently of your beliefs then you can give a rigorous definition of it that doesn't rely on arbitrarily chosen vague concepts like "dynamic flow" and "intentionality", and a way to measure it. It doesn't have to be binary, I don't think anyone here has any problem dealing with multidimensional concept closeness mathematically.