Different tools for different tasks IMO.
Everything has merit in terms of expanding your mind. Yes, that includes caffiene, alcohol, opiates, psychedelics be it synthetic or plant medicine. They all serve a purpose to some people in different setting.
Also MDMA gets a big miss on this board for not being recognised and a psychedelic and I find that slighty annpying as at the right dose, MDMA has taken me to places that dmt or lsd never can. Plus it's healed my mental state for weeks afterwards leaving me in the most positive state of mind without having to unravel that mysteries of mankind.
LSD is quite nice for parties though at low dose.
... not one human being excluded, and we could explore space, together, both inner and outer, forever, in peace.
Life is just a ride - Bill Hicks.