Advocating for violence and hate speech is fully protected. As long as it is against "terrorists". Whether these people are evil is of little relevance.

You can publicly advocate for the killing of Sinwar or Putin. But not Netanyahu or Trump

You are also not allowed to support groups your government designates as terrorists. Once again; you can support Israeli violence. You cannot support Hamas violence. The past was no different. Supporting groups such as the ANC or the Vietcong was illegal. Because that is terrorism.

The government controls free speech. They simply added a middle man: the word "terrorism".