Yes, I take issue whenever someone says such and so is “an illusion” implying that they have “the real knowledge”. It’s a common pattern and it’s maddening.
It’s likely we’re more or less on the same page. I figured out a few years back that I’m probably a “hard physicalist” but to an extreme; and we spent a lot of time describing what we think is outside of ourselves when what we’re REALLY DOING is mapping the inside of our brains as best we can as it interacts with forces in and outside of itself
[but not like simulation theory; it’s real; it’s just we do a lot of mapping]
h I disagree with myself there too. I wrote too quickly. I was thinking in terms of “mathematics” for example; why is it that we have both continuous and discrete in mathematics? why did we ever think reality was smooth or that it was digital? Because our cognitive systems do both in parallel and so that is how we interpret when we view reality through mathematics.