They're intertwined. Assuming you're American, our race relations are part and parcel interlocked with race - white settlers slaughtered indigenous because it let the settlers become petty-bourgeois landowners, and suppressed black people because it meant they didn't have to be capitalism's biggest losers. But one must remember that the superstructure also feeds the base - if we transition into socialism without addressing these issues, they will reemerge there and we will fail because we will create a racial underclass again.