Amazing that this still needs explaining.
It doesn't. The fact the definition of racism is being diluted virtually by the week is amazing. How long will it be before calling someone a 'Byker bastard' or 'Wallsend wanker' (no offence) is considered racist. And please, lets not pretend those who have climbed onto their 'high horse' have never uttered a racist comment at some point in their lives. Modern definition of course.