Mixed part-black American guy here- there's always complexity & past inequality, sure, but I'm a STRONG advocate for ever-greater interracial marriages here in N America & ever-increasing integration. Erode those racial/ethnic silos; 1 nation, 1 united people.
Mixed Japanese/Ashkenazi here! The post-racial golden child myth attached to multiracial children is in fact a white supremacist colorblindness construct and no amount of intermarriage will end the WS power structures that create racism
This idea completely ignores human nature. There will always be humans who would rather feel superior based on some trait that required no work or intelligence to achieve.