Ok, you only like the typical good guys, good for you, can't argue with personal taste.However liking or not liking them should not have an effect on your judgement, because if it does then you are clearly biased and your arguments won't be logical, you know like that whole ''the alliance should drive the forsaken back simply because they are how they are''.
No, they are only doing enough to ensure their race won't die, because they can't reproduce naturally, and they aren't trying to ''destroy all life on Azeroth'' or whatever bullshit people come up with.