Speak for yourself, please. There are quite a few who'd rather withold those kind of statistics, I'm quite certain. Here's another fact you probably don't want to know -- Hispanics are "white" when they commit a crime -- but Hispanic when they are a victim of crime. Neat, huh? If anything, obfuscation of the reality of crime causes discord -- there's a profound disconnect with what is reported in the media -- and taught in schools -- compared with the truth.
But, assuming Mr. Card's perspective, could we also apply that to the history of lynchings and Jim Crow? wouldn't these also be facts not worth knowing?