It's handy to differentiate between the "resting state" of perception and other states. That doesn't make the "resting state" (i.e. no recent ingestion/injection of any psycho-active compounds) more real, but it does provide a baseline that makes it easier to discuss the differences, similarities and unknowns when in other states.

I'm sorry that you think that the term "hallucinogen" is so loaded with perjorativeness. I don't find it hard to notice how many terms we use in English may have in the past had been used with perjorative intent and have lost that sense. From my perspective, "hallucinogen" (and "hallucinating") is one of them. I don't read "hallucinating" as "having an unreal experience of the world", but rather "having an experience of the world that differs substantively from the resting state".

> To dismiss them as hallucinations is to privilege your own view of reality over theirs.

AFAIK, anyone who has had such an experience has also experienced the world in the "resting state". Because of this, the "priviledging" is not my view of reality versus theirs, but "one of their experiences" versus "another one of their experiences". It doesn't need to be inter-personal comparisons in any way.