So is all this talk of truth just comparing other people's beliefs to our own beliefs, and trying to assert privilege?

Is the word truth just a weapon in a power struggle?

Increasingly, I've concluded this is true for a great many people, and just the people who would first ask these questions. For them, truths really are primarily weapons to manipulate others. And why shouldn't they be? Real power in the world is power over others.

What I notice in the video, and as a common theme of people I consider sane, is a bit of insanity, assuming that the correspondence theory of truth is shared by all, and similarly motivating to all. The seemingly inexplicable crazy of others becomes perfectly explicable and predictable when you give up that assumption.