Man of Honour
In today's age it is undeniably clumsy to have published that, but the irony is that in a perfect society (that people are trying to create) this wouldn't have been an issue. So there is an element of it being self-perpetuating. But, again, very clumsy. We are not in the ideal future and racism still very much is an issue.
Racism will remain very much an issue for as long as enough people are determined to make it so. Sadly, there are still more than enough people determined to impose the idea that "race" is real, that it defines everyone and that it should be used to determine how each person is treated and what words can be used by people of the "wrong" race. People of the "right" race can say and do anything, of course, because as always the same thing is different when the "right" group identity does it.
I think that the only route to a lack of racism is a lack of racism. Same for all irrational prejudices. You don't move away from the idea of group identity defining everyone, defining how they should be treated and defining what they are allowed to say by imposing exactly that.