People have different value systems, and different beliefs about the role of government. I might not agree with some of those values or beliefs, but it doesn't make one side evil. It's a philosophical difference over how society should work. Humans and societies are much more complex than good and evil. Good and evil, or heroes and villains are for fiction and religious narratives. And the reductive belief in people being good or bad tends to lead to holy wars and radicalization.