The hatred of traditional liberties like free speech by the left us nothing but an artifact of their current cultural and political dominance

Back when they weren't on top they were all for liberty. But now you see they don't need it anymore. 

Here us a particularly egregious example of authoritarian thuggery masquerading as concern for "human rights". I recall the Nazis shut down Jewish and Communist speech because they said it was "offensive" to the volk. Some things never change. Except that it's the left that is now openly authoritarian and anti constitutional.