I would posit that art generates an emotion in the artist as well, and at least for me, it's existential.

If i don't art.. i kinda become a horrible person and wanna die, so at least for me.. it is not superfluous, unless we accept that life is superfluous, in which case, I agree.

then again... calling something superfluous in a capitalist-extractivist society is a high compliment meaning something akin to "can't be exploited" which I find beautiful too. Thank you kindly for sharing :)