This attitude is the problem. Drugs are an easy trigger for those experiences and feelings that avoid all the self work humans are meant to do that would give them BETTER and more intense versions of the same feelings without any of the downsides. You don't need drugs to have highs and psychedelic experiences.
Humans are "meant to"? By whom?
You should keep in mind that stigmatization and criminalization of drug use is a very recent invention. Recorded psychedelic drug use goes back many thousands of years, if not more.
If someone is having psychedelic experiences without drugs they'll usually want drugs to stop that..
Hold up, where did you get this rulebook of what humans were "meant to do"?
I just get very concerned about this entire meant to do thing, because I'm pretty sure that almost everything we do in the 21st century would fall off that list. I mean, we're not meant to fly right? Go over 50 miles per hours right out? To strong alcohol? Licking toads? Viewing computer screens?