But it's a philosophical argument. Nothing supernatural about it either.
The reality is, we have devices in the real world that have demonstrable, factual capabilities. They're on the spectrum of what we'd call "intelligence". And therefore, it's natural that we compare them to other things that are also on that spectrum. That's every bit as much factual, as anything you've said.
It's just stupid to get so lost in philosophical terminology, that we have to dismiss them as mistaken maps or models. The only people doing that, are hyper focused on how important humans are, and what makes them identifiably different than other parts of reality. It's a mistake that the best philosophers of every age keep making.
https://en.wikipedia.org/wiki/The_Unreasonable_Effectiveness...
The argument you're attempting to have, and I believe failing at, is one of resolution of simulation.
Consciousness is 100% computable. Be that digitally (electrical), chemically, or quantumly. You don't have any other choices outside of that.
Moreso consciousness/sentience is a continuum going from very basic animals to the complexity of humans inner mind. Consciousness didn't just spring up, it evolved over millions of years, and therefore is made up of parts that are divisible.
Computations on the other hand describe reality. And unless human brains somehow escape the physical reality, this description about the latter should surely apply here as well. There are no stronger computational models than a Turing machine, ergo whatever the human brain does (regardless of implementation) should be describable by one.
Look into quantum mechanics much and you may even begin to doubt that. We're just a statistical outcome!