Pretty much this. Holding a character accountable for their actions isn't hating on them. When you analyze a character, you should acknowledge the good and the bad. Klaus is my favorite TVDU character. He's honestly one of my favorite characters in all of fiction. And I would be first to say that deserves all the horrible things that's happened to him post becoming a vampire lol.

Tbh, I've always held the belief that neither Klaus, or any of the Mikaelsons should find peace in the afterlife. That would be the equivalent of seeing Hitler in heaven lol. They're family has caused too much destruction. He's abusive, manipulating, petulant, vindictive, and cries as soon as anyone calls him on his bullshit. But those flaws are what makes Klaus who he is and why I find analyzing him so fascinating.

The same way I find Stefan's ripper nature fascinating because it contrast with who he tries to be as a person, and the inner conflict it causes. Or how Elena started becoming a hypocrite and losing her morality the more she got involved in the supernatural. Or how untrusting and intolerant Matt became towards supernaturals due to his trauma at the hands of them. All of these characters have flaws, and the flaws should be acknowledged with good when analyzing a person imo.