I used to think like that, then I met someone who's best friend committed suicide while under the influence of psilocybin mushrooms.
Psychedelics are powerful, and it is irresponsible to suggest, let alone guarantee, that they will benefit everyone.
It definitely loosens you up, to a point. Maybe 3-8 drinks in it is definitely closer to "the true self".
But in large amounts it definitely creates an over-emotional person. In it's own way it creates emotional reaction spirals that could cause suicide, or lashing out at people, irrational love or hatred of self, etc.
Like i said, biggest fallacy.
3-8? 8 drinks in and I'd be passed out on the floor.
Tbh one or two beers is all I drink these days, but six or seven is what it takes for me to be 'properly drunk' (which I don't enjoy.)