In the three years since Trayvon Martin was killed, the realities of police racism and violence, of segregation from schools to swimming pools, and of the legacy of slavery and Jim Crow have returned to mainstream discussions. And now as Confederate flags disappear in the wake of the murders in Charleston, racism is once again at the center of the popular consciousness.

There is a window, then, for the US left to push a deeper and broader conversation about the implications of racism and to build working-class organizations that fight for social justice for all.

But that opportunity will only be open to the degree we can overcome the ideological legacy of the last three decades. Since the 1980s, structural inequality has been increasingly replaced by personal responsibility as the main explanation for gross inequality. At the same time, attention to persistent and structural racism faded, supplanted by a focus on race and “race relations.”