You got me there that people have a right to express but not to have opinions, and if we did then something like the book 1984 would happen where the "thought police" would control how you thought, what you did. Mainly we wouldn't have a free will but become psychotic robots just going on a set schedule not having any freedom to enjoy the things we would like to enjoy. And if we did "big brother" or the thought police would punish us until we have become submissive to their power and influence.
I'll probably get a lot of grief for saying this but I do believe we should respect opinions that are hurtful, hateful etc. even though they might not be the most civilized opinions, because who are we to say that one person's opinion is invalid