Psychedelics _can_ permanently fix problems - anxiety, alcoholism, depression - that otherwise would make pharma companies huge amounts of money.
LSD is incredibly cheap to manufacture. There's no patent on it. Same with mushrooms and many others.
Now look at how much money those pharma companies made with Lexapro, with Prozac, with Risperdal. Even when they were caught marketing those drugs for unapproved uses, to children; and caught buying academics opinions, they made billions off the stuff.
Compare the list of side effects on their drugs to mushrooms or LSD. Compare the effectiveness. These companies aren't maintaining huge divisions of PR goons for the fun of it; they absolutely are out there on the internet, lobbying, and on traditional media, convincing people to form opinions like yours.