"to argue that a work of art that contained a similar phrase targeting black people would now be absolutely above board. No. It. Will. Not. Because. Power."

Lol, ok let's unpack this little nugget of wisdom. 

Clearly we have to ignore political power because that just wouldn't fit the narrative.  So we'll go with economic and social power which Pierre points to. The black middle class is bigger than the white middle class (and growing), blacks pay more tax, and blacks control 23% of the JSE compared to 22% by whites. And who controls the social narrative Pierre? Well, the fact that we have exhibits that proclaim "Fuck White People", politicians calling for dispossession of white owned land, numerous black editors, a plethora of black musicians, actors and artists one would sort of imagine that there isn't exactly social exclusion of blacks. 

What does the perceived power of a race have to do with individual right to artistic expression anyway? Does definition of hate speech change?