Whilst intent is part of it... I don't think it's enough to excuse you of something. I wouldn't want anyone to say comments like that about me or my family. I personally wouldn't find it funny or see the joke in it. It's honestly a little bit racist no matter what the intent is. I certainly think there's a difference between calling someone racist and saying that someone made a racist comment. In this case, I personally honestly believe that's a racist comment. Especially in the position that Sampson was in.