It also has to do with the fact that white nationalists and people preoccupied with race and IQ are relegated to the margins of society and aren't taken seriously in the mainstream. In the circumstance you have one that slithers through the system like Steve King, they are uncontroversially forced into capitulation and brought to task. Plus, there's something funny about the cultural-left delusions that lack any comedy on the right. There's a mean-spiritedness in the far-right's activity that you can't laugh at, like you can on the other side.