Depends if you consider the gentrification and the displacement of Hawaiians from their own island a dumb thing (that's pretty much what all fights in Hawaii revolve around).
Regardless of the reason, this fight in itself is so stupid. It's Hawaiians fighting main landers like always; this never resolves anything, doesn't change anything and unfortunately just makes the Hawaiians look bad. Well in this particular case both parties look like utter idiots.
There are much better avenues to air out grievances. Beating a bunch of "bros" on the beach really isn't going to accomplish anything. And honestly if it wasn't super obvious that this was Hawaii; if you told me this was a fight over the World Cup or Stanley Cup, I'd believe you.