An American is saying this? Oh wow.
But yeah, all 'racist' things said in Britain, are in completely different context.
Generally, there is little racism, for example. I love all races, but that doesn't mean I love everyone. I hate some whites, some blacks, some asians. You name it.
And because I hate that one individual, that somehow makes me racist. I know a lot of people that are in this situation, but use racist comments such as the 'n' word as ammo for their insult battle.
And generally, a lot of 'racist' chants are held quite high in British humor. Black people almost encourage us to be more comfortable with this sort of stuff. It's a good laugh in most respects. And everyone understands, keeps calm, and moves on.