How do we define 'nazi' and who is the authority that applies that label? If the word 'nazi' is carelessly applied to anyone exhibiting even slightly right-leaning tendencies, it diminishes its significance and undermines your credibility. This kind of naive approach and severe lack of nuance will lead to an intolerant echo chamber.
Fuck nazis, but also fuck anyone who dilutes the meaning by inappropriately labeling any viewpoint they don't like as nazism or fascism.