Scribe
Legend
Which, again goes back to clarifying that alignment and fluff is the optional default.
I can see for some iconic monsters/races you could add a bit more text or sidebar similar to what they did with the drow. But there are limitations to how much that can be done. I mean, what happens when the next supplement comes out and you can play a succubus or cambion or ... well whatever.
What we do then, is construct a setting where that all makes sense and the game very quickly becomes quite a bit more complex than 'Can I just fireball them before they talk to us.'
There is no reason we shouldnt be able to play as a non-Evil Succubus or Cambion. Heck, there are thinking Undead, why is it OK to just nuke a Lich?
This is not absurd, this is the logical reality when saying no sapient lineage can be defaulted to being 'bad'.