Onwards to tomorrow, the progressive way: 

Student protesters at the University of Missouri asked white supporters to leave Wednesday night in order to create a “black only healing space.” Steve Schmidt, an activist who was at the protest, tweeted that Concerned Student 1950 group were “asking white allies to leave.”

Free from any contaminating pallor, the students claimed they would be able to “share, decompress, be vulnerable and real.”

I couldn’t swear to it, but I have a vague feeling this has been tried before.