I’m not sure there really is a just cause for this seemingly perennial protest, in perspective. Now, of course we must acknowledge the genuine injustices many people still encounter.
But regarding “big R” institutional Racism, an enduring residual prejudice will always exist in society between people who are different. Fundamentally however, the issue of institutional racism doesn’t exist in a material way in the West in these modern days- Barack Obama as president showed this. General equality of opportunity also points to this. The meshing of cultures through globalization, will by its very nature take time- there will always remain people who will use race as a dividing issue. But we in the west are very much far ahead of many societies on “diversity”, and this is taken for granted- look at the far East, middle East, Africa in this same regard for example.
Changing peoples hearts, i.e. small mindedness on one side, or indeed inferiority complex on the other, is about something deeper than “social justice”. It’s about God, religion, morality.