Freedom of speech

I see a lot of people saying don't be a hater, this is an illegal website bla bla whenever someone says anything negative about a certain manga. I honestly get that you don’t like someone else saying something negative about something you like. But have y'all forgotten about freedom of speech? Comment section is there for people to express their opinions. It can be positive or negative, hateful or respectful. Everyone can say their own opinion. If you dislike what they're saying the dislike it or come with a more valid point that doesn’t disregard anyone’s freedom of speech.