Why does this community gets so aggressive when you say you don’t like a character?

I am truly interested in knowing why. It happened more than once to me and i find it absurd,touch some grass.Even if i insult a character that I don’t like who the fuck cares? They do not exist,they are not gonna cry or anything. Also,why isn’t it allowed to have opinions? Why do yall even give a fuck if a random stranger on reddit doesn’t like a character? Weirdos that do this are comparable to who insults actors because the character they played was a villain 🤣🤣