Arguably that's not a belief, not as he's using it. That's an emotional commitment.

Example: I love my wife. This is an emotional commitment. It can't be 'wrong' in a factual sense - that's the wrong rubric for it. So it's not really a belief in that sense either.

A belief should be amenable to facts, evidence, or some sort of feedback. If it isn't it's ultimately not a belief. It's excluded from the kinds of decision-making and reasoning he's describing.