Nothing about the violence part, but in regards to free speech: Freedom of speech is and always has been an oxymoron, maybe they don't throw you into a prison nowadays, but this is only because they have far more subtle methods nowadays at their disposal.
Theoretically you can speak your mind as you like, but then by some coincidence everybody (especially those that provide essential services like an internet platform in a political discourse) can just choose not to cooperate with you anymore which basically means that they can shut you down and destroy your life without having to change a single letter in the law, under capitalism (especially when there are so many monopolies as nowadays) free speech can never exist.
But the leftist celebrates it and even justifies it by becoming a facultative ancap because he wants to see you broken, he doesn't want to show you lenience, why should you grant them any lenience when they would destroy you without hesitation both in a physical and emotional way? Lenience should only be shown to people who show it to you. Violence is too extreme, but I wish that they were in the same position as we are nowadays. And this is important: I am nowadays against hate speech laws, because my group isn't in a position of power and therefore these laws have the potential to be used against me, but if my group was in power I would treat them as they treat me (#Killallmen would definetely not something socially tolerable anymore - trust me).