Ah yes, assuming that people will find themselves worse off then they did before means that's definitely the case./s Even when talking about LSD this still applies. I also don't get the point of mentioning things like HPPD when that has nothing to with whether or not psychedelics like LSD have the potential to treat certain psychiatric disorders like depression. If LSD were to be used to treat depression then it would be in clinical setting using microdoses. Also, research in clinical settings where researchers are able to control for potential confounds is going to have more weight to it in compariosn to some random dudes rant about their experience with LSD on some random ass suicide forum, lol. Even if we were to use anecdotal accounts then I could argue that, at least based on what I've seen being said by the majority of those who have used LSD, that it does have the potential for treating depression along with other mental illness. Again, just because something something doesn't work for you doesn't mean it won't work for others. It's not like anyone is claiming that everyone who uses LSD is going to automatically be cured of their depression. It's just that it seems as though psychedelics like LSD do seem to have the potential for treating certain treatments resistant psychiatric disorders, with many having talked about it benefitting them and research showing that it could potentially be used in treating patients in the future. Your experience alone doesn't disprove this.
LSD is also not man-made. It's a classic psychedelic, with one of the major traits of classic psychedelics being the fact that they are found in nature. The psychoactive properties of the drug comes from ergot which is a type of fungus that grows on cereal plants such as rye. It's semisynthetic, with it needing to be chemically extracted first before it can be used.
Also, the if evil is subjective then nobody can be truly inherently evil. Evil is very subjective and what is considered evil can differ from person to person. We can even see this when looking at how what is considered evil differs from those across different religions, cultures, and time-periods. There are people who literally considered stuff as harmless as being queer to be "evil". I'm not going to argue about whether evil is subjective or not any further since I doubt that we'll ever come to a point of agreement on that particular subject.