Unreliable narrator isn't the way I'd put it. See https://www.reddit.com/r/dresdenfiles/comments/10vlsra/harry_is_not_an_unreliable_narrator/. It's, as you say, Harry's perspective. Yes, we may not agree with it, but I can't say I find it unrealistic given the genre and his personal history.

In fact, I find it an intriguing moral discussion. Do we judge Harry for his private thoughts, or for his actions? In the real world, the answer would obviously be actions. We are none of us fully in control of our thoughts or urges. The fact that he behaves as a gentleman at all times should be lauded. Instead, many readers seem to think that he should be pure in heart and soul, and hold him to an unreasonably high moral standard.