Al's first reaction to Mum's words was: her analogy would be more correct if she had used 'Lilith' instead of 'Voldemort' (she is our peer and we haven't killed each other yet.) But being a reporter had taught him to stay quiet.
In select cases such as these.
Instead, he was distracted by a visual. Limited empathy, his mind's eye saw a flash of printed words in the exact font and color and smell of a Muggle psychology manual.
Limited, yes. But not non-existent.
"Lack of empathy for people is not only unacceptable by our society, it is, in many cases, criminal." He looked up at Mum, taking great care to choose his words. "Moreover, just because you cannot see something, doesn't mean that it doesn't exist."