Pretty much anyone would feel a bit touchy if it were suggested they were the scum of human society. Nobody likes being called that. When we’re talking about the alt right, a cluster of beliefs exhibiting anything from White Supremacy to anti-suffragist sentiments, it’s hard not to point out that they advocate for a lot of harm. Except a detailed description of the harm in question is a feature, and not a bug. They want to hurt you.
However, the alt right is uniquely predictable in that calling out alt right beliefs as being dangerous will inevitably result in you being doxxed and swarmed by rape and death threats, as if this proves how reasonable advocacy for the alt right cluster of beliefs is.
Cue a Canadian university where this is exactly what happened.