> Much like amanita muscaria, which certain people insist must be great if used right, is common as dirt, and yet is so unpopular as a drug that it isn't even restricted.

Psilocybe, the genus containing the most commonly cultivated magic mushroom, is also quite common. It is globally distributed with native species on every continent (less antarctica ofc). It didn't become illegal because it was common in the "wild", but because of the cultivation of one particular species at home and in closets.

A. muscaria on the other hand has never been successfully cultivated as far as we know. You would be surprised how many powerful psychoactive "drugs" can be found in ecosystems around the world