I'm afraid it's true. Whatever music one plays, it is all the folk music of this planet.

er not quite. There is commerce and there is involvement.

Folk Play. The music is something different. If it makes money it looses something of the integrity. It may be well played, it may have a meaningful message, but that commercial tag is visible. And is always suspect.

Folk music is about being there and doing it. The rest is entertainment.

Folk style - I may grant you, but "what is folk?" is a whole opinionated assertion in itself.