[ Hiei... registers the tone of that answer, but decides not to acknowledge it for the moment. Beings adapted, of course. Regardless of whether they were human or demon they all adapted in one way or another to changes, or whatever the hell the world threw at them all.

The differences didn't really matter, so far as Hiei was concerned. Which makes his answer very simple. ]

No. In demons, there are the useless, ugly, grey demons so weak that I could crush them as a child for my entertainment. And then there are those who were born strong and exemplary. They became kings, like Mukuro or Raizen.

[ Though Hiei is strong, he would loathe being a king. It took a certain type to not just like the violence of a tournament setup, which was the entire reason he bothered to participate. ]

The weak die and the strong prosper.