When a Neighborhood Watch guard shot Trayvon Martin in February 2012, a chorus of civil rights activists concluded that he had been killed because of his race. Michael Skolnick, the political director for hip-hop mogul Russell Simmons, spoke for the consensus in an article he titled, “White People You Will Never Look Suspicious.” I will never look suspicious to you. Even if I have a black hoodie, a pair of jeans and white sneakers on … I will never watch a taxicab pass me by to pick someone else up. I will never witness someone clutch their purse tightly against...