As an American, I find this statement radically perplexing.
Through the scourge of identity politics, we do nothing but categorize people into groups in basically every avenue of society. You can't go to college without your group affecting you. You can't find a good job without your group mattering.
Individualists who essentially want to take the Martin Luther King Jr speech literally (I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin, but by the content of their character.) can be castigated as the most vile people by some for not wanting to treat anybody differently from anybody else.