What does a dyslexic person call a black person? A ginger.
Did you say that joke knowing how offensive it would be to black people?
I didn't mean to offend anyone. I just want to joke. Please don't be so sensitive.
Even if your intention was not to offend anyone, telling jokes like that only encourage other people to use racial slurs. Those jokes trivialize the impact that using racial slurs can have on people. There are many articles online that discuss the harm that racial slurs can have on people, and I think you should read some.