I appreciate that angel boy is trying to be better than his elders, but if you think the Alliance attacking Dazar’alor is out of character for the Alliance clearly you haven’t been with the Alliance very long. XD
The Alliance rejected the Forsaken. If not for the Night Elves they probably would have rejected the Worgen. Jaina Porudmoore herself threw a hissy fit and got the Blood Elves kicked out of Dalaran.
Oh, how does that song go? Beware, Beware, The Daughter of the Sea…