You misunderstood my objection. The issue is not whether we can prove such a thing, but can we differentiate between different information processing systems in arguments that qualia exist at all. You assume qualia is a thing that brains do. On what basis do you assume anyone other than you have them, such that implies that no other systems do?
Qualia is one of those topics academics tend to roll their eyes at when it is brought up. Because it appears to do a lot, but in most cases is a variation of 'because I feel like it should be true'.