So how do you measure qualia? What is it made of? How is it actually defined? How do you detect if qualia is present in something other than your own head?
I stand by my statement that qualia is simply an artifact of our cognitive architecture. You are welcome to disagree but the arguments you are presenting fail to convince me in the slightest.
Science is built upon repeatable experiments that can be used to test hypotheses. It is not built on axioms and logical extrapolation- those are used to form new hypotheses but they are insufficient by themselves. We don’t decide something exists, we hypothesize that it exists and make predictions based on that hypothesis. If experimental results line up with our predictions then we call that a theory. If new data contradicts the theory or hypothesis then we revise and try again.