Because Alliance are a bunch of fags who caused 90% of the settings problems.
>Dreanai super charged the Burning Legion, they are also directly responsible for the Orcs drinking demon blood
>Elves summoned the Burning Legion to Azeroth....because the queen wanted some BTC. They also spawned Worgen
>Dwarfs summoned Ragnaros, destroying a large chunk of the Eastern Kingdoms
>Humans summoned the Orcs. The undead are because of humans.
Fuck the alliance pig dogs.