I don't believe it's due to selective enforcement so much as access to some creepy lawyer who will get your charges dropped. Also I think blacks probably commit more of the type of crimes that land you in prison, although I don't have stats to back that hunch up. Shoplifting doesn't usually result in a jail sentence, nor does embezzlement, but they are still crimes.
It's an interesting discussion and now I'm curious what exactly the criminal demographic is in this country. Just like the welfare debate, where someone will argue that most of the welfare recipients are black - this is not true, but blacks are on welfare disproportionate to their population - I'm curious what's truth and what's just a numbers game.
And I always enjoy having a disagreement with Pixie because she rarely just spews - she typically brings her A-game.