Look into the propaganda of Nazi Germany. Really. There needs to be an enemy within and an enemy without. That is trans folks and brown invaders coming in through the boarder.
This is not how it works historically. This is the horrible modern trend to make pastimes turn in to gigs. Who cares if it is not perfect? It feels good to make music. People would just get together at night and make music, tell stories, and generally just do fun things together to feel closer. We have focused too much on profit, again, in regards to an integral part of the human experience.
You don’t have to be a pro at something creative to enjoy doing it.
The rates of the side effects listed are highly blown out of proportion. Humans are inherently pretty terrible at assessing risk on such scales.