Leoj wrote:
Orcs destroyed the Draenei, mercilessly, tore up Outland. Did I mention that Ner'zhul aka the Lich King was an orc? Well until Arthas killed him and became the one true (lich) king.
Drink demon blood. Orcs are not a pop flyin' go fun people. Tauren are ok I guess. Lot of bad trolls, they always have something bad going on with summoning some sort of god or something. Undead, don't get me started they are practically evil, the first quests you do for them have you testing out new sources of the Plague to unleash on people and let us not forget Putress and what occured at the Wrath Gate. The Blood elves, lol Kael was insane (even if it was just a minor set back) and he captured a Naaru and were sucking the Light out of it.
With the exception of the trolls however, all the cases you named were something people in power did. The actual populous was mostly innocent, just ignorant of their leader's corruption.
Dwarves: 1/3rd of the race is evil... The Blackrock Dwarves
Draenai: 99.99% of the race is evil. Ever heard of the Eredar?
Humans: Almost every evil organization in Azeroth is lead by humans
Night Elves, of course, planted not one, but two new World Tree despite their Cenarius ordering them not to.
Gnomes are not evil, but they are incredibly stupid and blow up themselves way too often.