As someone who managed to piss a few off on this very site (the Off-Topic section is practically ruled by them) and proceeded to laugh at them as they proved my point, the /pol/ nazis are probably tied with the yurifags and weeaboos as the lowest form of life from 4chan.
These people unironically believe that the Jews rule everything, that they're responsible for all of society's evil, that all Jews are also sexual degenerates, and if you dare call them out, they'll further show how much of a bunch of white supremacist morons they are, going as far as to threaten to kill you.
If that's not cringe, autistic and stupid, I don't know what is. They're just vile and beyond retarded. Not to mention fucking annoying.