Culture is not a race it is a set of behaviors. Like Muslim or criminal is not a race. Thanks for the accusasions. Said some white guy
Your Ted Talk on racism in America was in 2015. Ted has re-twitted your article. Valuable insight, but errors in your assessment of human behavior. Humans are tribal and will find excuse to form groups. Take a trip to Africa and you will experience black segregation.
Who cares is a better question.
There is no such thing as racism.