The PC police lack self-consciousness. They can voice closely-held beliefs that are fundamentally quite racist, but they don't notice or care because they are convinced that they are the ones in the right.
That's why they changed the definition of racism so that now instead of "discrimination on the basis of race" to them it means "something something evil white people". That way the new definition of racism is inherently racist, and being opposed to racism is now itself construed as racism because not discriminating on the basis of race "perpetuates" evil white beliefs like color-blindness. Kind of like the Orwellian freedom is slavery argument.
