Black Lives Matter and the recent protests have focused attention on questions of racism, racial bias and implicit bias. After a brief discussion of these terms, this paper looks to infant research to see what experiences might dispose of development toward an openness toward diversity or to a bias against it. Positive and negative responses are built into the infant. But research shows that a diverse environment of positive and negative experiences is optimal for development. A variety of evidence from the worlds of infant research and attachment theory is cited. The idea that racism or racial bias is based on a longing for an earlier state of oneness or symbiosis is contradicted by research. Longings for a non-diverse world are seen as an adult fantasy, one that is encouraged and exploited by structures of subjugation. A case vignette is offered of a mixed-race couple in which long-simmering issues of racism and sexism surface in the treatment.