Going off of the disagreement from the two, I've never understood music genres. In fact I've never understood any media genres. They're all so vague and arbitrarily defined. I know from English literature history there is so SO much history of gatekeeping and elitism and what is "real literature" and constantly changing the names and lines of genres to sound more official and be taken more seriously (specifically with speculative fiction), but I've always just been like... yeah I'm gonna enjoy what I enjoy. Just give me a synposis or let me listen to the first minute. Not like the genre alone gives me a good idea if I'll like or dislike again (at least for me).
I at least could never imagine so vehemently writing off X genre or people that enjoy it. Certainly not to the level of an "all fans of X music are Y personality". And I don't really care to argue over what genre a certain band or music is in.