Wrong. This is one of those things where you can't speak about (authoritatively, judgmentally, whatever) unless you have experience. It gives you a fundamentally new experience you have not had unless you have tried it, so you can't judge it as "synthetic" or "real" until you try it. With that bottom line out of the way, I want to help rehabilitate your view:
Maybe one way to view which correctly re-emphasises the "natural"/positive nature of the experience is to view entheogens/empathogens as a "performance enhancement" (or in gamer parlance, a cheat code) that gives you access to states of consciousness that you could indeed achieve sans external chemical assistance (ECA) with sufficient, work, practice, discipline, focus (interested? Energy work: breath, yoga, meditation, energy, diet). Then a question becomes: are you someone who likes to play with cheats on or not? But a more important question: you, who never even knew you could feel this incredible way, combined with the aid of this external chemical assistance which permitted you to discover that, now, having a taste for how expansive/loving/[appropriate-adjective] your life/experience can be, commit yourself to play this game of life without cheat codes and develop your capacity more in order to create, sans ECA, these experiences.
In BNW aren't things "force administered" to create a desirably compliant/utilitarian population? Indeed, nightmarish. But if you take it of your own choice, it's different.
These chemicals are probably powerful tools. Of course, people can choose to abuse those things and harm themselves and others, or just be generally grumpy about everything no matter what anyone says (which itself is a matter of perspective, something with which ECE can aid). So people can also choose to make the best use for themselves of those tools.
It doesn't mean you have to try, or even be open to. But before you talk on something you don't know and attempt to pass premature judgement incorrectly upon that, be open to realizing that there's a "step change"/watershed between what you know right now, and what you know once you had a good experience on them. In a similar way that you can't really know what it's like to have kids until you have them. It opens up your world. And what you do with that, just like kids--whether you fuck it up or not, or use it for good or not--is up to you.