A brief taxonomy of haters, in order of least to most worthy:
1. Contrarian - the worst kind; completely unmoored and childish. Sometimes lobbed as an insult unfairly but not always.
2. The Deranged - just hating on someone or something obsessively, usually deservedly but to the point of excess. I can kinda respect it but at some point you‘re just inflicting psychic damage on yourself.
3. The Principled Hater - a stone in the stream, a person with a vantage point and a sense of taste who understands their own subjectivity. Willing to give anything a fair shake but unwilling to pretend to like something they can’t bring themselves to.