Their goal is not really to prevent you from saying that you hate someone, their real goal is to brainwash you into not feeling and thinking that way, and prevent you of convincing others to feel and think like you.

I've also sort of understood the motive to this, which is that one prohibits spreading hateful messages because it's possible that people would grow into believing them, and then there could be another holocaust or something. However, I don't understand the naivety of expecting that, well perhaps other than children, are really forced to "obey" such messages. I.e. it should be free speech based on the fact that there's no clear correlation between messaging such things, and the belief becoming imprinted to people because people are free to choose their reaction.