These guys hyper-rationalize their own lives to feel secure in the decisions they make and how they feel about the world. This instills a fear of anything that doesn't fit with their world model, i.e. practicing empathy is painful and risky.

They paradoxically feel like very "tolerant" people because they disagree with so much, so the few things about the world and others they don't accept feels like a lot of work to sit with without constant judgement or disapproval, and often this leads to subtle manipulation if they don't feel comfortable enough. Even then, a lot of what they actually say they "accept" is just self-serving, e.g. authority figures, attempted relationships, status quo, etc.

In another paradox, the world becomes more confusing and complicated for them because eventually nothing truly makes sense, if we confidently try to live an oversimplified version of the actually complex and messy universe we are faced with. There's a feedback loop here that amplifies the situation to the point of disconnecting from reality.