In case you didn't know: these words incite hate towards a group of people based on their skin color. In other words, you are advocating racism. You've just exposed yourself as a racist.
In fact, the redefinition is often invoked to justify as not-racist acts that are racist even in terms of the redefinition when the context of the action is considered, because it's usually coupled with a misdirection about power relations in a different, usually broader, context than is relevant to the action in question.
Avoiding the redefinition entirely and talking about racial bigotry and the power relations which magnify it's impacts as distinct and interacting things, rather than trying to set an arbitrary standard of what degree of the latter is necessary for the former to deserve to be called racism is far more productive, if not as convenient for providing certain racists cover.
racism = prejudice + power
When a bunch of black power advocates beat a white person because nobody is around to stop them, they clearly show that they are the local maxima of power. Even if "systemic oppression" occurs as a global maxima, there is certainly a lot of variability of who's in power in the rest of the graph.