One strange/funny thing that I would also add is that I think there could be a genetic component, not 100% certain, BUT I am from Yorkshire, and one of the leading proponents of illusionism who also doesn't believe in qualia is Keith Frankish is from Yorkshire too! As I understand it your Mum was also from Yorkshire? Maybe we lack the qualia gene! (I'm not certain I actually believe this I just found it a funny coincidence).
If I was a Boltzmann brain then I could, like a video game examine some element of the world and it'd turn up random right? Whereas in actuality it's super ordered (in most cases) so I have strong reasons to believe I'm not a Bb, I think if careful measurement of fresh, unexplored places started coming back statistically random like the fluctuation idea describes, I'd change my mind. It doesn't, so I don't believe it. it's a fun thought experiment though.
What happens to commerce when people can be convinced to buy anything? Do we instead have AI that can't be persuaded that trades for us? Or would be post-scsrcity by that point? Great write up!