This doesn't just mean that they have some quirky and unpleasant views. It means that they don't understand how politics work, why economies behave as they do, or how power is constructed in the modern world. As I wrote in an earlier post on this subject, "Jew haters don't understand how the world works; anti-Semitism is both a cause and a consequence of a basic failure to comprehend the way pluralistic and liberal societies behave. As a result, nations and political establishments warped by this hatred tend to make one dumb decision after another — starting at shadows, warding off imaginary dangers, misunderstanding the nature of the problems they face."
There are many forms of prejudice and bigotry, and they are all twisted and ugly, but Jew hatred may well be the most damaging to the hater's ability to understand the world. Jew hatred takes the form of a belief that conspiratorial groups of super-empowered Jews run the world in secret, cleverly manipulating the news media and the intelligentsia to hide the truth of their control. Someone who really believes this isn't just a heart-blighted ignorant boor; someone who believes this lives in a house of mirrors, incapable of understanding the way the world actually works.'