I don't see the source of our disagreement outside of your staunch opposition to the terminology that I've employed, and I'm honestly not interested in responding to arguments regarding terminology any more.
You use a lot of arguments that involve phrases like "to me" or "for me" or "I don't think", reflecting too greatly your own personal tendencies (like ignoring lyrics). You obviously don't seem to think lyrics are important to music in general based on some of your comments, and you certainly indicate that they're not important on a personal level for you either, so I think we should just agree to end this neutrally for now. I'm still going to write that article though, and you can crap on it all you want as long as it's not the same old disagreement on terminology.
I choose to use the word ideology because it's the most accurate term to describe the concept under discussion, even if it doesn't fit squarely with the general conception of the word that most people recognize. But here is the Oxford English Dictionary entry for the word:
Obviously the definition that we're most used to is number 4, but the word has greater variety than you continue to suggest. My usage of the term is more in line with the second definition. I also use the word ideology because of the connotation that it offers us, namely the idea that one cannot be in direct contrast with an ideology and still be included in that ideology. In other words, the argument is that the core, essential value of black metal, spoken in terms of a negative, can be said to be something like 'non-support of Christian and religious faith, beliefs, practices, morals, and influence'. So no band can be said to play black metal if they demonstrate support for Christianity qua Christianity, for example, but this does not mean that all black metal bands must necessarily demonstrate direct opposition to Christianity....
2. Ideal or abstract speculation; in a depreciatory sense,
unpractical or visionary theorizing or speculation.
3. = IDEALISM 1. ...
Thrash, heavy, and death metal generally are packed full of energetic riffs. Black metal not so much.
For whatever it's worth I would listen to more black metal if I lived in a colder climate, but something about it being 100 degrees + and living in the sunniest place on the planet does not lend itself to listening to the musical equivalent of a blizzard.
So maybe I should adjust my arguement a little. You could not sing about "fun in the sun", beach party type songs using black metal, since black metal is inherently introspective, and.....
Black metal is not a party.
On a different note, if you want to talk about consistency in terms of music, it would be even harder to pinpoint "the sound" of black metal. Venom and Mercyful Fate sound absolutely nothing alike let alone the second wave bands that followed compared to those bands. I would even go as far as to say that second wave, especially the main bands, were pretty musically different from each other. Mayhem, Darkthrone, Immortal, Burzum, Blasphemy, Beherit, etc. had pretty different musical approaches to black metal. It never has been a musically defined genre.
I'm only going to respond to one of these since I've already explained the others on various occasions. The sincerity of ideology is not relevant in terms of music. You can't have a genre spanning a decade with the same ideology and claim that black metal doesn't have a core ideology, plain and simple.
They could be considered both. If there are consistant Satanic themes in a band that is death metal in sound, I see no reason why they can't file under both black and death metal.
Not sure what you mean by energetic then since black metal is like 85% tremelo picking and blasting.