AAG I can see you are passionate about your Black metal, honestly it is among the Worst genres of metal ever in my opinion. The subject matter is depressing almost all the time, many of the artists themselves are borderline psychotic,,,Varg Vikernes anyone?
I will always consider "Singing" to be greater than this momentary "Fad" of Cookie Monsters trying to cough out a lung to impress their fans.
Different strokes for different folks, I get my entertainment from vastly differing kinds of music, but not this variety. It will fade into obscurity soon enough regardless, and maybe it will remain underground indefinitely, but then again maybe it will disappear forever.
Hate harsh vocals all you want, man, there's absolutely nothing wrong with that. But you need to go see a doctor if you think it's just some momentary fad. It's been going on since the early 1980s, it's integral in several opposing styles of music, and it's featured in countless chart-accosting bands, not just recently but since the 90s and earlier. Love 'em or hate 'em, harsh vocals are a varied and widespread vocal technique. If you're expecting every single
style of music that depends on harsh vocals to fade away, and every single
chart-topping band that used harsh vocals to be forgotten, you're delusional. Something that immensely large-scale will not happen in our lifetime.
You don't like harsh vocals, so it's no wonder that you're not aware of how prominent they are, nothing wrong with that, but they've been mainstream since the dawn of the 90s and are essential for so many different waves of music. Harsh vocals will probably be around until rock music is forgotten. Sure, screamo will fall out of vogue and metalcore will fall out of vogue and black metal will fall out of vogue, but just like when death metal fell out of vogue, and grindcore fell out of vogue, and groove metal fell out of vogue, and nu metal fell out of vogue, and hardcore fell out of vogue, and post-hardcore fell out of vogue, new styles which utilize similar techniques will emerge as sure as people will continue to find a use for the synthesizer and the guitar.
As for Black Metal, we can only agree to disagree. Psychosis has never shied me away from an artist (Syd Barrett, anyone?). And while their actions may have been highly subversive, the lyrics aren't that dark a lot of the time. For example, Varg Vikernes's titular song, the song baring the name of his band "Burzum," could scarcely be considered depressing. "When night falls, she covers the world in darkness, suddenly...
life has new meaning." A lot of Black Metal is about beauty and wonder.