If not, then Icehorse, your friends are right. White people do not, cannot know what it's like, and therefore should not criticize the Black Lives Matter movement on the basis of "enough is enough". They *need* to protest Icehorse; we as white people probably will never be able to relate to that need. It's just a fact of life.
I'm sorry that you haven't understood the point of the OP, my bad.
I'm completely agree with and defend the right of the protestors to publicize what they're experiencing. And I am making zero claims that I know much about what they are experiencing. Further, I agree that arriving at an understanding of what they're experiencing is vital in order to solve the problem.
My point is that, once the problem has been ascertained, solutions should be assessed on their merit, not on who offered the solution.