I was reminded today of just how much I enjoyed Buffy The Vampire Slayer and why I enjoyed it. This scene from Season 4, Episode 8 - Pangs where Spike tries to explain to Buffy and the rest of the Scoobies how the world really works and why they need to stop being so apologetic and soft always makes me laugh.
It doesn't hurt that I think there's more than a hint of truth in what Spike is saying, harsh as it may be. That of course is what makes for a compelling antagonist. You should be able to identify with them and see a logic in their behavior.
I think it may be time to rewatch Buffy from the beginning. I think it's all on Netflix these days.