There was a time when people aspired to a world where race was an afterthought. It was always a tough slog, but we’d moved closer and closer over time. Then something funny happened – a political party realized they could benefit from division and that unity was bad for business. Unity would require a debate on issues and their merits, which was one they had been losing, so they opted for backsliding; divide to conquer. If you divide people into groups it is much easier to win. Groups of people are easier to manipulate than millions of individuals. It is easier...