The explosive racial question Osaka asked Japan

Given that I have encountered people who hold that racism is an inherent trait linked to the 'white gene', I wonder how they can explain this since it involves a mixture of the 'peoples of color'.

Quote:

Naomi Osaka was not just the first Japanese player to win the US Open and the Australian Open, and in doing to the first to become world No.1. She was also the first of Haitian descent. Osaka, 21, is proudly biracial but having chosen to represent Japan, she flies the flag of a nation historically dedicated to racial purity.

https://www.msn.com/en-au/sport/tennis/the-explosive-racial-question-osaka-asked-japan/ar-BBSM69Q?li=AAgfLCP

via International Skeptics Forum http://bit.ly/2sO34Ec