I suppose this comes of them being travelers... They may be entirely unconcerned with the shape this planet is left in when they move on.

[Something he has a distaste for, and it seeps into his tone as he speaks. This isn't something he can condone, and he can't imagine how a population as a whole decides on such a vampiric approach.

Moving from world to world, hollowing it out from within, and leaving it in this state to repeat the cycle just seems wrong]