I think that this idiot is ignorant and a royal donkey face, but him joking about that stuff doesn't mean he's racist. Ryan Higa basically sums up my stance on this: "Is Justin Bieber Racist?: http://youtu.be/A-MFTuWcFNs
, I know you probably won't see this, but if you do, please click the link. It's important to see the other side of things.
And BTW, comparing a racist comment to killing someone is a REALLY bad example.