If you think about it, free speech is about as close as you can come to a completely libertarian system. Even then it was obvious early on that having completely unrestricted free speech for all is dumb as fuck because so many people have bad intentions or are dumb as fuck. So we’re left with not being able to agree where to draw the line and with disproportionately powerful people being able to leverage all that “freedom” towards their own goals while weak and dumb people with good intentions get chewed up by their ideology influencing machines.