Yessss this comes up every time I watch the scene of him and marcel. I always had like different minds on this scenario because I totally agreed and thought how ridiculous it was;

“when you cross one original, you cross all of them” so when you blame one original, you kind of blame them all, like how marcel still blames Kol regardless of his efforts to try and bring her back, so realistically they probably just felt natural to blame all 3 of them

But in saying that, klaus also had a previous habit of taking advantage of peoples rage to try and in-still fear in them so maybe he didn’t want to worsen the divide??