People who behave or believe in radical ways that unsettle or frighten others are often put into groups, given overarching character traits, and assigned stereotypical behavior as a way of making them easier to understand. They become the Other.
Kind of like how the folks who like My Little Pony get stamped with the Brony label if they're old enough.
Or how those weirdos playing games using electronic devices are clearly Gamers. Living in their mother's basement, unwashed and out of shape, socially awkward to the point of anti-social. All that.
Eventually the Brony, the Trekkie, the Gamer, the Gay, the Jock, the Nerd, the Bimbo, the Prep, the Man, the Woman, and all those other Others will become people.
Just have to spend enough time getting to know them, so that you don't need that title to know where to begin.
Now then, I'm going to go beat on Illinois Nazis. Because screw those guys!