No - we think our qualia exist
You are saying that the brain thinks that qualia exist. In other words, you say that the movements of atoms in our brains create qualia (or at least the illusion of it.
Let's say there is a brain with a property: thinking
Also, there is a computer simulating a brain with a property: thinking
Both the biological and the simulated brain think the same way. However, everything from the materials to the way they process information is different. Does the computer perceive qualia because it "thinks" it has qualia? If that is the case, then your argument from chemistry falls apart. However, if the computer brain doesn't perceive qualia, then qualia isn't merely an illusion brought about by "thinking" it exists.
My point:
- IF qualia is an illusion, THEN a computer can have qualia
- IF a computer can have qualia, THEN qualia isn't a property of chemistry