Jews are looked upon as macabre outsiders: /pol/ views them like emos or goths, standing out in stark contrast to everyone surrounding them, wearing black makeup and lipstick and strange clothes. Pessimistic in comparison to their way of life. So Jews are often portrayed as sickly and unworthy of society's trust.
The Jew and Gentile distinction they bring up to justify this. That Jews view them as subhumans.
IDK, it has been said before that /pol/ has more in common here, b/c they also have a belief in racial supremacy and view others as subhumans.
When you put your mind to it, it all really is bizarre.
The world is bizarre, esp. if /pol/ is right.