It doesn't seem to be indicative of "the worst of the left" in my experience. There are a ton of people I know who sound exactly like this. People close to me in other circles who aren't this level of crazy are literally scared to say anything and the people around her have literally publicly been talking about looking everyone in their friend group up to see if they voted because "if they didn't" apparently that makes them evil pieces of shit. 

None of this is an exaggeration, and it isn't an outlier, it's extremely and frighteningly common.

And btw, people who sound exactly like this have been in positions of power and have permeated the establishment for the better part of a decade, so the idea that somehow the right is special crazy doesn't add up to me. They are largely a faded reflection of the lunacy on the left, imo.