Free speech is an absolute and must remain so, aside from 'fire in a theater' etc...
The real abusers of free speech are the Fish Dimbaugh's and the Sean Scammities who today were, behind the scenes, handing verbal 5 gallon cans of gasoline to the alt-right and egging them on to further violence. The power structure of the right wants violence, Trump made this clear when he refused to condemn that racists responsible for the attacks in Charlottesville. Unlike Trump though, who was shamed into condemning his racist followers, right wing media delighted in the violence and, as they always do, tried to blame someone else for it.
It is better to have the losers out on the street speaking their hatred so we know where and who they are so a much louder voice can echo back YOU'RE WRONG, GO HOME.