It's gets really interesting when DFW discusses Lynch's great subject: evil. In Lynch's universe, Evil is a state, a force, that sort of descends upon people, that inspires them, takes them over.
You can see this everywhere in our real world. Which is maybe Lynch's great insight. And it's so of the moment. Makes for disturbing movies. Makes us uncomfortable. A great subject.
We look at the world, and yes, it's disturbing, makes us uncomfortable too. Terrible things are happening. Right now. People are dying, suffering at the hands of other people. The hate of the other is pervasive, corrosive.
I think of this great Spoon song. "You have no fear of the Underdog, that's why you will not survive." People want to wipe out other people. That's an evil impulse. Whatever reasons are concocted to explain or justify such barbarity are not persuasive, not adequate. Pure Evil.