I think that the author (and I) would disagree with this. There are no bad people. There are people who do destructive things. That is just a statement of reality. We have certain feelings about those people. But bad is not a quality of people that exists in reality outside of ourselves.

I think it is important, if you want to understand how things work, to distinguish between how we feel about something, and how those things really are. If we don't distinguish, we cannot successfully deal with them. Strong feelings, particularly strong anxieties, about people, make it hard to think clearly about them as they are, as opposed to how they make us feel. Being clear about our feelings makes it easier to think about how things are! Such-and-such is this way, and I feel this about it.

Nighty-night.