Sammy Jankis
Was it me?
Here's a good analogy. Society says God is real too. In the sense that my life is worse off because society pushes that idea is real. People fly real airplanes into real buildings because of this idea. God, however, is clearly not real. The consequences of the concept of God, however, are real.
But we are slotted into the race categories based on very real aspects of ourselves, our gender, our country of origin, our pigmentation.
Race is only real for you when it comes time to punishing those for whom race is real, and it is real to them, because you're punishing them for it, arbitrarily on job sites, their opinions on race unknown.