This video is definitely worth watching. More importantly, though, it is completely worth sharing with your nice white friends since it features an intelligent, honest black man stating what should be a rather obvious truth. This means that white people no longer have to feel racial guilt for wanting to defend themselves from random "youfs" who go about causing trouble since a black man says it's okay.
More to the point, it's a little troubling that this black has to encourage whites to defend themselves. If you're too much of a coward to do what is obviously right, maybe you do deserve to have the shit kicked out of you.