Just to say I hope you do not see me as antagonistic as Im enjoying this exchange.
So my point is that tacos and punk are living art forms and attempts at classification are bound to fail and are generally the sign of somebody being an outsider looking in. In your case it seems like youthful enthusiasm but we always worry it is somebody who is gonna Christopher Columbus our culture like the British company that copyrighted Taqueria and then sued Mexican restaurants... or somebody with no culture selling crunchy ground beef tacos and using their social capital as authoritative white people to redifine our culture as they see fit.
Same goes with underground scenes... there is already a party you just do not know anybody who would invite you yet. We are already networking, doing conventions, collabs. Podcasts, documentaries, workshops, mutual aid, charities, pooling resouces to negotiate rates and discounts, forming syndicates, publishing each others work, providing distribution, apprenticeships, curated lists, educational resources...
I wish you luck but know these things exist, to define them is to shoot and stuff them because you want to own something and you cannot own it while it is alive and free.