Wow your such an intellectual. So you wanna tell me rape, torture, genocide are all not evil? What about pedophilia? What the nazis did? Is that evil? Killing innocent civilians?
No they're not 'evil t'hey're heinous acts committed by humans, but what we're really taking about is people and collections of people - they're not some spiritual terror hellbent on causing pain they're normal people with parents and likely children they love, friends and ambitions and hopes for the world.
Acting like things you don't agree with are evil allows you to hate them without question, of course they must ve stopped they're only trying to hurt people... and of course you shouldn't bother to question your own team they're good so a thing they do is justified in the fight against evil... which is how you become someone else's evil.
Throw out childish bronze age notions of how reality works and sccept the complexity which is all around us and turns everything into a Grey area.