The two group categorization is a rhetorical device commonly used everywhere, throughout the world, to help drive a point, worldview, or allegory home. In it's

The two group categorization is a rhetorical device commonly used everywhere, throughout the world, to help drive a point, worldview, or allegory home. In it's correct form, it is never intended to be a dichotomy (as this would make it fallacious). So perhaps the way to understand it is PG believes people fit in these two groups, but those are not the only two groups you fit in, and they are by no means all-encompassing. It's kind of like, you are either a member of team red, or team blue. You may be a blue type of person, another is a red, but that by no means defines the entirety of your being. Let's try to have a little more good faith here, when trying to understand people's musings. The reality is, most of us here wouldn't have the courage to put our thoughts and opinions out there on the internet for the whole world to see, at least not to the extent PG does.