That’s about consciousness, which is a much larger claim than the self being an illusion

I don’t agree. Care you defend this claim? Your assertion that you can have consciousness without a self (ego death) seems more personal spiritualism than argument.

In theory, a conscious being could exist that’s always in a state of ego death, and have no understanding of the self and be utterly confused by why people find anything unintuitive about the teleporter paradox.

In theory like modal possibilities, or in theory like you genuinely believe such a person can exist? I’d love to hear why.

The Illusionist theory of Consciousness is pretty solidly refuted. The emergent theory of consciousness is vaguely similar, and argued by some to be stronger, others to be weaker, than illusionism. I think it’s the most popular view among physicalist philosophers. For the arguments against emergentism, the most common seems to be the required presupposition of physicalism plus some handwaving to make it work. It’s noted, however, there are a vast number of permutations of the emergentism argument or what emergent mental states actually mean, which each one of those permutations a bit different.

Upon analysis, neither has demonstrated being “a fully consistent view of the self” with any success. Ultimately, both are just unsubstantiated attempts to fill the gaps in our understanding.