I think there's a lot of confusion on what a psychedelic experience is and it gets confused with a hallucinogenic experience, which both classes of substance can offer.
What do you assert is the difference between a psychedelic experience and a hallucinogenic experience then? Dissociative I agree only partially overlaps with psychedelic on a venn diagram but hallucinogen and psychedelic I understand as synonymous.
For me, the psychedelic experience is more about the "Ah hah! we're all in this together! We're all the same thing! I've removed the veil and barriers I've built up all my life and can finally see clearly what it's All About." I'm sure it's different for others, but I don't experience that "oneness" or "connection" on dissociative. It feels like I am born again, free to be vulnerable and experience the world without the lenses that society and myself have placed over my eyes.
https://www.vice.com/en_us/article/ep4dxk/its-official-dmt-m...