When there is a tribalist backlash over every other "strong statement" then we create a climate where "sounding pleasant" becomes paramount
It hurts civilization
But usually that abuse exists only if it reinforces your belonging to a group
If you are a right-winger, then abusing "libtards" makes you a bigger hero among your tribe
But that's not really indicative of free speech.
That's the sign of civilized discourse
As discussed in Kathopanishad, it becomes an instance of choosing Preyas over Shreyas