A substantial body of research on diversity philosophies has shown that multiculturalism (i.e., emphasizing and valuing cultural/ethnic differences) is a more effective way to promote equality and reduce bias than color blindness (i.e., deemphasizing cultural/ethnic differences in lieu of similarities). However, across two experiments, we present evidence for an unexpectedly negative outcome of multiculturalism: increased belief in race essentialism, or the notion that racial group differences are valid, biologically based, and immutable. Study 1 ( N = 165) shows that participants exposed to multiculturalism expressed greater race essentialist beliefs compared to those exposed to color blindness. Study 2 ( N = 150) replicates this effect and also finds that exposure to multiculturalism, compared to color blindness, decreased participants’ belief that racial equality is a problem. These findings raise the ironic possibility that well-intentioned efforts to portray the value of differences may reinforce the belief that fixed, biological characteristics underpin them.

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