See, I don’t think the Jim Crow Laws are the best example here either, they did make violence towards minorities justifiable but the act of the violence was up to the individual. Discord never deprived the ponies of their rights, he never oppressed them like the acts of the Jim Crow laws. Actually, that’s not entirely true, I do agree with you in the sense that he sort of brainwashed them, which is a violation of their rights.
Maybe I’m just stubborn, even though you’ve pretty much drilled my argument I’m not ready to say hands down yes, Discord is evil. I’m not ready to put him in the same category as a true villain like the Joker who has been mentioned in this thread, or even Chrysalis for that matter.