If you think someone is a **** and they happen to be black, then you might call them a black ****. Equally, if they're ginger, you might well call them a ginger **** and if they're fat, you might well call them a fat ****. I'd see all of these as being equally bad. But if there's some obese twat waddling round town in front of me tomorrow, I'll almost certainly tell the fat **** to get out the way.
So if I call someone a ****, for whatever reason, you think it's only bad if their race is mentioned? You narrow minded fat ginger baldy ****.
My point is, that they're all insults, insults that are made with the sole intention of upsetting those they are aimed at. If you want to insult someone who happens to be black, you can be pretty certain that calling them a black **** will upset them more than just calling them a ****, just as calling a fat bloke a fat **** will upset them more than just calling them a ****. Anyone can call someone a ****, it's making it personal that makes it hurt. Surely you can see that, you grey haired speccy ****... Being from Hull and having been schooled in a West Hull Village from a fairly early age, I had no concept of racism at all, there were almost no immigrants in Hull in the 70's(forgetting the jews from the 40's, who looked the same apart from their big noses, allegedly), we only had a few black kids in my school and to be honest, I hadn't even noticed they were black. It was only after I left school and ended up playing at a couple of Rock Against Racism gigs and started travelling around a bit, that I realised there was any issue at all. If you really want to see racism on a grand scale, go to Japan, they seriously see every other race as being inferior, to a shocking degree.
That's not an appropriate argument though, is it. Clearly if I called someone a 'black ****' chances are I'm not black. But then if I call someone a 'ginger ****', chances are I'm not going to be ginger. Similarly, if I am white, chances are I won't see another man's white skin as making him sufficiently different from me as to be worth commenting on the fact.