You have to split up religious tradition and institutionalisation from principles of moral values and existing in harmony with the world. The former indeed can be source of a lot of suffering, but the latter does not implicitly harm anybody since it basically stops with people practicing meditation and seeking other forms of devoted attention, which by the way tolerates ideas of concepts of god without anything supernatural about it.
Also, one moment you consider if ego-death is much too vague a definition and the next moment you wonder why so "few" people have experience with it. That does not make sense, if it were a term unreasonably open to interpretation you would think it would cause extremely many people to match it to their experiences.
I don't think it is
that few after all, to some extent it is generally associated with high levels of psychedelia and dissociation, not something idiosyncratic.
If you check the Shroomery and their definitions for the 5 levels of shroom trips they describe,
Level 4
Strong hallucinations, i.e. objects morphing into other objects. Destruction or multiple splitting of the ego. (Things start talking to you, or you find that you are feeling contradictory things simultaneously). Some loss of reality. Time becomes meaningless. Out of body experiences and e.s.p. type phenomena. Blending of the senses.
Level 5
Total loss of visual connection with reality. The senses cease to function in the normal way. Total loss of ego. Merging with space, other objects, or the universe. The loss of reality becomes so severe that it defies explanation. The earlier levels are relatively easy to explain in terms of measureable changes in perception and thought patterns. This level is different in that the actual universe within which things are normally perceived, ceases to exist! Satori enlightenment (and other such labels).
do you find any agreement in general descriptions and examples of effects on those one or two upper levels Ismene? Do you presume that with every psychedelic there is just a ceiling effect and everything is just making stuff up about reality and sense of self seeming to fall apart?
I personally think that it is pretty much logical that since psychedelia distorts and warps your senses in the broadest way of the word... if you keep going far enough those senses stop being able to 'compute'.
It seems a very strange idea to me that you would accept that psychedelics are capable of many things regarding mental effects, but once you get to the extreme end you stop believing certain subjective experiences are possible?
How does that make any sense???
I honestly cannot even think of states of consciousness I deem impossible to have on psychedelics (since I have not had them myself), maybe there is a limit to the level of complexity and conscious rational attention it can be given but actually you would be amazed at the kind of savant shit people's minds are capable of, insanely elaborate detailed models (like star maps).
But ego-death is not even complex, it is highly unusual in a sense to have consciousness/awareness but nothing else... but it is not really elaborate.
Another thing, I personally explicitly tried to reject making experiencing ego-death or ego-loss anything elitist... please don't complain about dick-sizing one moment and trying to convince us that surely you have done larger doses of psychedelics the next.
It can be a bit of a travesty that some people try to force getting ego-death experiences while at the same time not being ready or apparently not being able to properly arrange a good set and setting and first getting decent experience and understanding of what not to do with psychedelics. I get that it makes experiences like these controversial but it has nothing to do with the fact that they are possible.
And absence of evidence is not evidence of absence, rookie logical fallacy: the fact that you have not had it does not prove it is not possible. And while you are one person you are basically calling many other people who have claimed to have experienced something in this category a liar.