Cognitive dissonance is a common phenomenon that occurs during the discussion of serious topics. Oftentimes when a person hears something contrary to their perceived narrative they will fail to process it in a rational manner; this is due to the uncomfortable nature of realizing the worldview we hold might not be completely accurate. The aforementioned discomfort and state of cognitive dissonance results in people, when confronted with viable alternative viewpoints, leveraging a tool we will conceptualize as “Wokam’s Razor”:
Good post, you should also include James Watson, who's glowing scientific career was utterly destroyed for his dissent about IQ differences between ethnicities. There are others, though their names escape me.