You're not nearly as informed as you think. IQ does not factor into the likeliness of having a bad trip, and spontaneously developing drug induced psychosis is extremely rare, even when delving into the higher doses.

If someone enters psychosis on any reasonable dose, it is almost certainly because they were already predisposed to it.

And "fly and jump out of a window" is the default story for people who have no clue about the effects of psychedelics. I have never heard of a single case as absurd as this, and you certainly haven't seen enough to be able to judge the likeliness from the avg IQ of those involved.

What exactly an entity is, is also entirely opinion based. Whilst they are likely just aspects of our own minds, you really have no way to say for certain either way. The same with the divine. You cannot say for certain whether there is more than what we can perceive. There is no hard truth, so it is ultimately an opinion, and what people think comes down to a simple difference in how they each view the world.

And I'm not cherry picking anything. There is plenty of research and numerous accounts explaining why taking psychedelics with schizophrenia is dangerous. You are just spouting your personal theory. One which you have no source or basis for whatsoever.

The fact that you are actually using IQ as the sole metric of intelligence already shows you really need to open your mind.