My god. If everything I have been called on a cricket field had been put in the papers, the sport would be abolished.
Racism should be stopped, and I have no problem at all with that being a sensitive issue. But apart from that, just deal with it yourself.
There's a good starting point on this issue.
Most now agree that racism should be stopped. Why?
Once you've transposed the answer onto other type sledging models, you will start to see the picture.
It's not always the words themselves that cause the angst but the driven intent of those words to deride and demean.