Daniel,
Perhaps I could have been clearer on a couple points. I should have said the radical right, at the moment, is fighting for unfettered free speech and radical left limiting speech. Also, I was reflecting on the lack of limitations on Hitlers free speech during his rise to power which allowed him to use racist remarks and hate speech to attack his political enemies and gain initial support among the radicalized margins. Once in power it is true that speech was restricted for opponents and non-party citizens. And yes, the radical left-right are equally guilty of limiting free speech.  I also agree that free speech is a liberal (John Stuart Mill liberal anyways) democratic principal and belongs neither to the far left nor the far right. The authoritarian left are indeed the ones currently threatening free speech today. I support limits on hate speech, seems you do too, but current efforts to curtain free speech are a bridge too far.