I just made an account on this forum even tho im def NOT Christian to tell you that your son is right and you should stop labeling him as a druggie.
I dont know if im going to be able to get the point across to you, but everything your son is telling you is 101% correct. Psychedelics are tools for healing and have changed many lives for the better myself included. They are drugs, yes, any mind altering substance, including alcohol which i have a feeling you accept is a drug. Psychedelics like LSD, psilocybin mushrooms, and DMT break down your ego and show you the true nature of yourself and this reality. Ive done psychedelics and had profound experiences like this, i would not consider myself experienced but i have learned some pretty profound things and became a more open minded person as a result.
Im not trying to diss you. I just want you to be open minded here when i tell you your son is correct and is in fact bettering himself. You have access to the internet, you can find plenty of information about the healing power of these substances. Society has brainwashed you among many people to shun these tools because it makes you think in a way the government does not want you to and makes you think for yourself. I used to act like I followed Jesus just because I was afraid of going to hell, even tho part of me thought it was all [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse]. I respect everyone's spiritual beliefs, don't get me wrong, i just finally decided to think for myself after i started tripping. Plenty of misinformation about psychedelics are purposely put out there. Especially because of people like you who say DMT is meth and 2C-E is coke. If you knew anything about any drug at all you'd know there are plenty of substances that might look similar to meth or coke but are completely different.
Moral of the story is your son is doing the right thing and isn't just some drugged up loser.