I meant to comment on this and then forgot to. Would you ever consider changing one of the guys' races in the original version for the sake of diversity?
If you don't want to change any of their races, but don't want to be criticized for writing about a cast full of white pretty boys, you could just be vague enough with your descriptions to leave it up to readers' interpretation s as to what race the characters are. Obviously if you describe Nick as having blond hair and blue eyes, they will assume he's a white guy, but if you just describe AJ and Howie as having dark hair and eyes, they could be any race. That wouldn't necessarily make your story more diverse or inclusive, but at least no one could say with certainty that they are all white. And if it helps, I've always pictured Minako as being Japanese-American when you talk about her because of her name, even though I think you said once that she wasn't.
Things get lost in the walls of text, lol.
You know, I've thought about it, but then it also leads me back to your last comment that you always pictured Minako being Japanese-American just based on her name. The fear of misrepresentin
g a culture at best or cultural appropriation at worst, so much to the point that I've also thought about changing her name to something more "generically American" sounding to avoid that since I have no authority on what it's like to be Japanese-American. The fear is especially prevalent with everything going on these days. I could go the complete opposite direction and actively give her attributes of my own mixed heritage, but I also know next to nothing about my own cultural traditions and associate much more with my "whiteness" than my "Native Americanness," to the point that it's something I only vaguely consider a part of my identity, despite only being a couple of generations (and several states) removed. Although I'm sure things like that are often struggles for other people with mixed heritage, but overall race isn't really a focus in the story outside of the whole "in general, humans are anti-demon" thing (though in the end, that has less to do with anything race-related and more to do with something I won't spoil here quite yet).
There's something to be said for the vague vagueness of "brown hair and brown eyes" (AJ and Howie were a lot of why I said "mostly white" originally rather than just "white") but then I also worry if people will care that diversity is or isn't there. Less for the diversity aspect necessarily and more that there's something really powerful in meaningful representation that I do think is important to include, especially with our frequent POV character Nick just being as is (though I wouldn't call him a poster kid for the white cis-gender heteronormativ
e patriarchy or anything). I've also been actively trying to give the ladies in the book more badass things to do to combat fantasy stereotypes that "girls don't get cool big swords," but I feel like this had less to do with them originally and more to do with giving the Boys several cool things to do in a Backstreet Boys fanfic that were much cooler than any original characters, or NSYNC because everybody hates them anyway. That's the real bias in this story, lol.
All that being said, while I think diversity and inclusion are important, I also think it's fine to write a novel about five white pretty boys, whether they were inspired by a boyband or not. I definitely don't think writers should feel pressured to include "token" characters of other races, sexual identities, abilities, etc. just for the sake of diversity. Write according to your vision and what makes the most sense for your story.
I wouldn't want any of the characters to be a "token" anything because the idea of including diversity just to tick a diversity box also bothers me, but like I said, I also want to be inclusive for meaningful representation
. I guess it's something I worry about more as I near the rest of the cast being introduced and having to solidify who they are as original characters and not "and then a Howie appeared and everyone was surprised because he had a meaningful role so early in the story." (Which I think is less prevalent these days than it was in 2005, lol.) Realistically, I could give them all blue skin and stop worrying about it, but I like to agonize over the details, lol.