Repeating that isn't going to make it more relevant.
In this instance at least, nobody's speech rights were in any way trodden upon, by any reasonable argument whatsoever. Not a hint of that. What happened was one guy said some things (free speech), a bunch of people complained about it (also free speech), his employer apologized (yet again, free speech), and then he quit (his right, because he's not his employer's slave).
At no point was free speech in any way under assault or threat here. Talking about the KKK and whatnot is just an attempt to distract from the central issues.